345431423400621 has 32 divisors (see below), whose sum is σ = 480122245324800. Its totient is φ = 220714086565440.

The previous prime is 345431423400619. The next prime is 345431423400689. The reversal of 345431423400621 is 126004324134543.

It is not a de Polignac number, because 345431423400621 - 2¹ = 345431423400619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345431423400421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41919331 + ... + 49478208.

It is an arithmetic number, because the mean of its divisors is an integer number (15003820166400).

Almost surely, 2^{345431423400621} is an apocalyptic number.

It is an amenable number.

345431423400621 is a deficient number, since it is larger than the sum of its proper divisors (134690821924179).

345431423400621 is a wasteful number, since it uses less digits than its factorization.

345431423400621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91398089.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 345431423400621 in words is "three hundred forty-five trillion, four hundred thirty-one billion, four hundred twenty-three million, four hundred thousand, six hundred twenty-one".