38315231057 has 4 divisors (see below), whose sum is σ = 40569068196. Its totient is φ = 36061393920.

The previous prime is 38315231039. The next prime is 38315231069. The reversal of 38315231057 is 75013251383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30628150081 + 7687080976 = 175009^2 + 87676^2 .

It is a cyclic number.

It is not a de Polignac number, because 38315231057 - 2¹⁴ = 38315214673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38315231057.

It is not an unprimeable number, because it can be changed into a prime (38315231077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126918544 + ... + 1126918577.

It is an arithmetic number, because the mean of its divisors is an integer number (10142267049).

Almost surely, 2^38315231057 is an apocalyptic number.

It is an amenable number.

38315231057 is a deficient number, since it is larger than the sum of its proper divisors (2253837139).

38315231057 is a wasteful number, since it uses less digits than its factorization.

38315231057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253837138.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 38315231057 in words is "thirty-eight billion, three hundred fifteen million, two hundred thirty-one thousand, fifty-seven".