38123764128 has 48 divisors (see below), whose sum is σ = 111194314560. Its totient is φ = 12707921088.

The previous prime is 38123764093. The next prime is 38123764139. The reversal of 38123764128 is 82146732183.

It is a tau number, because it is divible by the number of its divisors (48).

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, 22061500 + ... + 22063227.

It is an arithmetic number, because the mean of its divisors is an integer number (2316548220).

Almost surely, 2^38123764128 is an apocalyptic number.

It is an amenable number.

38123764128 is an abundant number, since it is smaller than the sum of its proper divisors (73070550432).

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

38123764128 is a wasteful number, since it uses less digits than its factorization.

38123764128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44124746 (or 44124732 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 38123764128 in words is "thirty-eight billion, one hundred twenty-three million, seven hundred sixty-four thousand, one hundred twenty-eight".