38607813840 has 40 divisors (see below), whose sum is σ = 119684223648. Its totient is φ = 10295416960.

The previous prime is 38607813821. The next prime is 38607813847. The reversal of 38607813840 is 4831870683.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 38607813840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38607813847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80432706 + ... + 80433185.

Almost surely, 2^38607813840 is an apocalyptic number.

38607813840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38607813840 is an abundant number, since it is smaller than the sum of its proper divisors (81076409808).

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

38607813840 is a wasteful number, since it uses less digits than its factorization.

38607813840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160865907 (or 160865901 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 38607813840 in words is "thirty-eight billion, six hundred seven million, eight hundred thirteen thousand, eight hundred forty".