38822775565 has 32 divisors (see below), whose sum is σ = 54568958976. Its totient is φ = 25958845440.

The previous prime is 38822775521. The next prime is 38822775583. The reversal of 38822775565 is 56557722883.

It is a de Polignac number, because none of the positive numbers 2^k-38822775565 is a prime.

It is a super-2 number, since 2×38822775565² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3413929 + ... + 3425281.

It is an arithmetic number, because the mean of its divisors is an integer number (1705279968).

Almost surely, 2^38822775565 is an apocalyptic number.

38822775565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38822775565 is a deficient number, since it is larger than the sum of its proper divisors (15746183411).

38822775565 is a wasteful number, since it uses less digits than its factorization.

38822775565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13789.

The product of its digits is 28224000, while the sum is 58.

The spelling of 38822775565 in words is "thirty-eight billion, eight hundred twenty-two million, seven hundred seventy-five thousand, five hundred sixty-five".