4188972248869 has 4 divisors (see below), whose sum is σ = 4247971858080. Its totient is φ = 4129972639660.

The previous prime is 4188972248779. The next prime is 4188972248959. The reversal of 4188972248869 is 9688422798814.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4188972248779) and next prime (4188972248959).

It is a cyclic number.

It is not a de Polignac number, because 4188972248869 - 2³⁵ = 4154612510501 is a prime.

It is a super-2 number, since 2×4188972248869² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4188972248795 and 4188972248804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4188972242869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29499804499 + ... + 29499804640.

It is an arithmetic number, because the mean of its divisors is an integer number (1061992964520).

Almost surely, 2^{4188972248869} is an apocalyptic number.

It is an amenable number.

4188972248869 is a deficient number, since it is larger than the sum of its proper divisors (58999609211).

4188972248869 is an equidigital number, since it uses as much as digits as its factorization.

4188972248869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58999609210.

The product of its digits is 891813888, while the sum is 76.

Subtracting 4188972248869 from its reverse (9688422798814), we obtain a palindrome (5499450549945).

The spelling of 4188972248869 in words is "four trillion, one hundred eighty-eight billion, nine hundred seventy-two million, two hundred forty-eight thousand, eight hundred sixty-nine".