431626506342164 has 24 divisors (see below), whose sum is σ = 871800072221568. Its totient is φ = 183151275674400.

The previous prime is 431626506342151. The next prime is 431626506342203. The reversal of 431626506342164 is 461243605626134.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76313028704 + ... + 76313034359.

It is an arithmetic number, because the mean of its divisors is an integer number (36325003009232).

Almost surely, 2^{431626506342164} is an apocalyptic number.

It is an amenable number.

431626506342164 is an abundant number, since it is smaller than the sum of its proper divisors (440173565879404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431626506342164 is a wasteful number, since it uses less digits than its factorization.

431626506342164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152626063175 (or 152626063173 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 431626506342164 in words is "four hundred thirty-one trillion, six hundred twenty-six billion, five hundred six million, three hundred forty-two thousand, one hundred sixty-four".