431444561013 has 12 divisors (see below), whose sum is σ = 629021978208. Its totient is φ = 284941578600.

The previous prime is 431444560999. The next prime is 431444561021. The reversal of 431444561013 is 310165444134.

431444561013 is a `hidden beast` number, since 4 + 31 + 4 + 4 + 4 + 5 + 610 + 1 + 3 = 666.

It is not a de Polignac number, because 431444561013 - 2¹⁰ = 431444559989 is a prime.

It is a super-2 number, since 2×431444561013² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431444561113) 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, 224009713 + ... + 224011638.

It is an arithmetic number, because the mean of its divisors is an integer number (52418498184).

Almost surely, 2^431444561013 is an apocalyptic number.

It is an amenable number.

431444561013 is a deficient number, since it is larger than the sum of its proper divisors (197577417195).

431444561013 is a wasteful number, since it uses less digits than its factorization.

431444561013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448021464 (or 448021461 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 431444561013 in words is "four hundred thirty-one billion, four hundred forty-four million, five hundred sixty-one thousand, thirteen".