319288561972 has 24 divisors (see below), whose sum is σ = 593410345920. Its totient is φ = 149799492480.

The previous prime is 319288561951. The next prime is 319288561987. The reversal of 319288561972 is 279165882913.

It is a super-2 number, since 2×319288561972² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 319288561972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7070272 + ... + 7115287.

It is an arithmetic number, because the mean of its divisors is an integer number (24725431080).

Almost surely, 2^319288561972 is an apocalyptic number.

It is an amenable number.

319288561972 is a deficient number, since it is larger than the sum of its proper divisors (274121783948).

319288561972 is a wasteful number, since it uses less digits than its factorization.

319288561972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14185911 (or 14185909 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 61.

The spelling of 319288561972 in words is "three hundred nineteen billion, two hundred eighty-eight million, five hundred sixty-one thousand, nine hundred seventy-two".