38619669877 has 4 divisors (see below), whose sum is σ = 38624655040. Its totient is φ = 38614684716.

The previous prime is 38619669859. The next prime is 38619669887. The reversal of 38619669877 is 77896691683.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77896691683 = 509 ⋅153038687.

It is a cyclic number.

It is not a de Polignac number, because 38619669877 - 2¹⁵ = 38619637109 is a prime.

It is a super-2 number, since 2×38619669877² (a number of 22 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 (38619669887) 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, 2480943 + ... + 2496460.

It is an arithmetic number, because the mean of its divisors is an integer number (9656163760).

Almost surely, 2^38619669877 is an apocalyptic number.

It is an amenable number.

38619669877 is a deficient number, since it is larger than the sum of its proper divisors (4985163).

38619669877 is an equidigital number, since it uses as much as digits as its factorization.

38619669877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985162.

The product of its digits is 164602368, while the sum is 70.

The spelling of 38619669877 in words is "thirty-eight billion, six hundred nineteen million, six hundred sixty-nine thousand, eight hundred seventy-seven".