38721836264136 has 32 divisors (see below), whose sum is σ = 97295984533440. Its totient is φ = 12841759571648.

The previous prime is 38721836264117. The next prime is 38721836264161. The reversal of 38721836264136 is 63146263812783.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 38721836264136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4094944116 + ... + 4094953571.

It is an arithmetic number, because the mean of its divisors is an integer number (3040499516670).

Almost surely, 2^{38721836264136} is an apocalyptic number.

It is an amenable number.

38721836264136 is an abundant number, since it is smaller than the sum of its proper divisors (58574148269304).

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

38721836264136 is a wasteful number, since it uses less digits than its factorization.

38721836264136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189897893 (or 8189897889 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 60.

The spelling of 38721836264136 in words is "thirty-eight trillion, seven hundred twenty-one billion, eight hundred thirty-six million, two hundred sixty-four thousand, one hundred thirty-six".