31645340516343 has 32 divisors (see below), whose sum is σ = 43141274265600. Its totient is φ = 20624195102976.

The previous prime is 31645340516191. The next prime is 31645340516369. The reversal of 31645340516343 is 34361504354613.

It is a happy number.

It is not a de Polignac number, because 31645340516343 - 2⁸ = 31645340516087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31645340516292 and 31645340516301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31645340516743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 795708963 + ... + 795748731.

It is an arithmetic number, because the mean of its divisors is an integer number (1348164820800).

Almost surely, 2^{31645340516343} is an apocalyptic number.

31645340516343 is a deficient number, since it is larger than the sum of its proper divisors (11495933749257).

31645340516343 is a wasteful number, since it uses less digits than its factorization.

31645340516343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46191.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 31645340516343 in words is "thirty-one trillion, six hundred forty-five billion, three hundred forty million, five hundred sixteen thousand, three hundred forty-three".