31455655413 has 64 divisors (see below), whose sum is σ = 53083011072. Its totient is φ = 16122758400.

The previous prime is 31455655351. The next prime is 31455655421.

It is a happy number.

31455655413 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31455655413 - 2⁸ = 31455655157 is a prime.

It is a super-2 number, since 2×31455655413² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31455655423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10614670 + ... + 10617632.

It is an arithmetic number, because the mean of its divisors is an integer number (829422048).

Almost surely, 2^31455655413 is an apocalyptic number.

It is an amenable number.

31455655413 is a deficient number, since it is larger than the sum of its proper divisors (21627355659).

31455655413 is a wasteful number, since it uses less digits than its factorization.

31455655413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074.

The product of its digits is 540000, while the sum is 42.

The spelling of 31455655413 in words is "thirty-one billion, four hundred fifty-five million, six hundred fifty-five thousand, four hundred thirteen".