38287521538 has 16 divisors (see below), whose sum is σ = 65648568384. Its totient is φ = 16405733520.

The previous prime is 38287521521. The next prime is 38287521541. The reversal of 38287521538 is 83512578283.

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, 192045 + ... + 336832.

It is an arithmetic number, because the mean of its divisors is an integer number (4103035524).

Almost surely, 2^38287521538 is an apocalyptic number.

38287521538 is a deficient number, since it is larger than the sum of its proper divisors (27361046846).

38287521538 is a wasteful number, since it uses less digits than its factorization.

38287521538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534057.

The product of its digits is 3225600, while the sum is 52.

The spelling of 38287521538 in words is "thirty-eight billion, two hundred eighty-seven million, five hundred twenty-one thousand, five hundred thirty-eight".