316172240538 has 32 divisors (see below), whose sum is σ = 788377536000. Its totient is φ = 82122659760.

The previous prime is 316172240521. The next prime is 316172240543. The reversal of 316172240538 is 835042271613.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 316172240538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342177288 + ... + 342178211.

It is an arithmetic number, because the mean of its divisors is an integer number (24636798000).

Almost surely, 2^316172240538 is an apocalyptic number.

316172240538 is an abundant number, since it is smaller than the sum of its proper divisors (472205295462).

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

316172240538 is a wasteful number, since it uses less digits than its factorization.

316172240538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684355522.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 316172240538 in words is "three hundred sixteen billion, one hundred seventy-two million, two hundred forty thousand, five hundred thirty-eight".