38138797328 has 20 divisors (see below), whose sum is σ = 73897241628. Its totient is φ = 19068541440.

The previous prime is 38138797309. The next prime is 38138797349. The reversal of 38138797328 is 82379783183.

38138797328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 19274324224 + 18864473104 = 138832^2 + 137348^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466388 + ... + 542028.

Almost surely, 2^38138797328 is an apocalyptic number.

It is an amenable number.

38138797328 is a deficient number, since it is larger than the sum of its proper divisors (35758444300).

38138797328 is a wasteful number, since it uses less digits than its factorization.

38138797328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107162 (or 107156 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 59.

The spelling of 38138797328 in words is "thirty-eight billion, one hundred thirty-eight million, seven hundred ninety-seven thousand, three hundred twenty-eight".