631875688131 has 8 divisors (see below), whose sum is σ = 842877547344. Its totient is φ = 421062143840.

The previous prime is 631875688123. The next prime is 631875688139. The reversal of 631875688131 is 131886578136.

It is an interprime number because it is at equal distance from previous prime (631875688123) and next prime (631875688139).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631875688131 - 2³ = 631875688123 is a prime.

It is a super-2 number, since 2×631875688131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (631875688139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47070900 + ... + 47084321.

It is an arithmetic number, because the mean of its divisors is an integer number (105359693418).

Almost surely, 2^631875688131 is an apocalyptic number.

631875688131 is a deficient number, since it is larger than the sum of its proper divisors (211001859213).

631875688131 is a wasteful number, since it uses less digits than its factorization.

631875688131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94157461.

The product of its digits is 5806080, while the sum is 57.

The spelling of 631875688131 in words is "six hundred thirty-one billion, eight hundred seventy-five million, six hundred eighty-eight thousand, one hundred thirty-one".