31626431475107 has 12 divisors (see below), whose sum is σ = 36813960579096. Its totient is φ = 27090663455520.

The previous prime is 31626431475097. The next prime is 31626431475253. The reversal of 31626431475107 is 70157413462613.

It is not a de Polignac number, because 31626431475107 - 2¹⁰ = 31626431474083 is a prime.

It is a super-2 number, since 2×31626431475107² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31626431475707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210714458 + ... + 210864495.

It is an arithmetic number, because the mean of its divisors is an integer number (3067830048258).

Almost surely, 2^{31626431475107} is an apocalyptic number.

31626431475107 is a deficient number, since it is larger than the sum of its proper divisors (5187529103989).

31626431475107 is a wasteful number, since it uses less digits than its factorization.

31626431475107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421580498 (or 421580491 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 31626431475107 in words is "thirty-one trillion, six hundred twenty-six billion, four hundred thirty-one million, four hundred seventy-five thousand, one hundred seven".