317388249072 has 80 divisors (see below), whose sum is σ = 958970368000. Its totient is φ = 100227865536.

The previous prime is 317388248953. The next prime is 317388249077. The reversal of 317388249072 is 270942883713.

317388249072 is a `hidden beast` number, since 3 + 1 + 7 + 3 + 8 + 82 + 490 + 72 = 666.

It is a super-2 number, since 2×317388249072² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317388249077) 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, 19325872 + ... + 19342287.

It is an arithmetic number, because the mean of its divisors is an integer number (11987129600).

Almost surely, 2^317388249072 is an apocalyptic number.

It is an amenable number.

317388249072 is an abundant number, since it is smaller than the sum of its proper divisors (641582118928).

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

317388249072 is a wasteful number, since it uses less digits than its factorization.

317388249072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38668195 (or 38668183 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 317388249072 in words is "three hundred seventeen billion, three hundred eighty-eight million, two hundred forty-nine thousand, seventy-two".