18827224869 has 8 divisors (see below), whose sum is σ = 25116333760. Its totient is φ = 12544799616.

The previous prime is 18827224859. The next prime is 18827224883. The reversal of 18827224869 is 96842272881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18827224869 - 2²⁵ = 18793670437 is a prime.

It is a super-2 number, since 2×18827224869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18827224859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664332 + ... + 1675605.

It is an arithmetic number, because the mean of its divisors is an integer number (3139541720).

Almost surely, 2^18827224869 is an apocalyptic number.

It is an amenable number.

18827224869 is a deficient number, since it is larger than the sum of its proper divisors (6289108891).

18827224869 is a wasteful number, since it uses less digits than its factorization.

18827224869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341819.

The product of its digits is 6193152, while the sum is 57.

The spelling of 18827224869 in words is "eighteen billion, eight hundred twenty-seven million, two hundred twenty-four thousand, eight hundred sixty-nine".