317137640402 has 32 divisors (see below), whose sum is σ = 546353752320. Its totient is φ = 136544458320.

The previous prime is 317137640401. The next prime is 317137640471. The reversal of 317137640402 is 204046731713.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (317137640401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2685533 + ... + 2801135.

It is an arithmetic number, because the mean of its divisors is an integer number (17073554760).

Almost surely, 2^317137640402 is an apocalyptic number.

317137640402 is a deficient number, since it is larger than the sum of its proper divisors (229216111918).

317137640402 is a wasteful number, since it uses less digits than its factorization.

317137640402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122198.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 317137640402 in words is "three hundred seventeen billion, one hundred thirty-seven million, six hundred forty thousand, four hundred two".