38167910640 has 80 divisors (see below), whose sum is σ = 131467255200. Its totient is φ = 10178108928.

The previous prime is 38167910591. The next prime is 38167910659. The reversal of 38167910640 is 4601976183.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 15 ways as a sum of consecutive naturals, for example, 8833005 + ... + 8837324.

It is an arithmetic number, because the mean of its divisors is an integer number (1643340690).

Almost surely, 2^38167910640 is an apocalyptic number.

38167910640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38167910640 is an abundant number, since it is smaller than the sum of its proper divisors (93299344560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38167910640 is a wasteful number, since it uses less digits than its factorization.

38167910640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670351 (or 17670339 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 38167910640 in words is "thirty-eight billion, one hundred sixty-seven million, nine hundred ten thousand, six hundred forty".