38720428988736 has 112 divisors (see below), whose sum is σ = 112083318835200. Its totient is φ = 11699649093120.

The previous prime is 38720428988729. The next prime is 38720428988737. The reversal of 38720428988736 is 63788982402783.

It is a super-2 number, since 2×38720428988736² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720428988737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25684336 + ... + 27150063.

Almost surely, 2^{38720428988736} is an apocalyptic number.

It is an amenable number.

38720428988736 is an abundant number, since it is smaller than the sum of its proper divisors (73362889846464).

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

38720428988736 is a wasteful number, since it uses less digits than its factorization.

38720428988736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52834772 (or 52834762 counting only the distinct ones).

The product of its (nonzero) digits is 1560674304, while the sum is 75.

The spelling of 38720428988736 in words is "thirty-eight trillion, seven hundred twenty billion, four hundred twenty-eight million, nine hundred eighty-eight thousand, seven hundred thirty-six".