38744374815 has 20 divisors (see below), whose sum is σ = 69452880024. Its totient is φ = 20663666352.

The previous prime is 38744374763. The next prime is 38744374829. The reversal of 38744374815 is 51847344783.

It is not a de Polignac number, because 38744374815 - 2¹⁰ = 38744373791 is a prime.

It is a super-5 number, since 5×38744374815⁵ (a number of 54 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47832157 + ... + 47832966.

Almost surely, 2^38744374815 is an apocalyptic number.

38744374815 is a deficient number, since it is larger than the sum of its proper divisors (30708505209).

38744374815 is an equidigital number, since it uses as much as digits as its factorization.

38744374815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95665140 (or 95665131 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 38744374815 in words is "thirty-eight billion, seven hundred forty-four million, three hundred seventy-four thousand, eight hundred fifteen".