38720538552 has 32 divisors (see below), whose sum is σ = 96832569600. Its totient is φ = 12902683104.

The previous prime is 38720538551. The next prime is 38720538607. The reversal of 38720538552 is 25583502783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720538551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 183778 + ... + 333489.

It is an arithmetic number, because the mean of its divisors is an integer number (3026017800).

Almost surely, 2^38720538552 is an apocalyptic number.

It is an amenable number.

38720538552 is an abundant number, since it is smaller than the sum of its proper divisors (58112031048).

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

38720538552 is a wasteful number, since it uses less digits than its factorization.

38720538552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520395 (or 520391 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 38720538552 in words is "thirty-eight billion, seven hundred twenty million, five hundred thirty-eight thousand, five hundred fifty-two".