431690267313 has 20 divisors (see below), whose sum is σ = 649577747940. Its totient is φ = 285692821632.

The previous prime is 431690267297. The next prime is 431690267341. The reversal of 431690267313 is 313762096134.

It can be written as a sum of positive squares in 2 ways, for example, as 99156971664 + 332533295649 = 314892^2 + 576657^2 .

It is not a de Polignac number, because 431690267313 - 2⁴ = 431690267297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431690267383) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19439668 + ... + 19461861.

It is an arithmetic number, because the mean of its divisors is an integer number (32478887397).

Almost surely, 2^431690267313 is an apocalyptic number.

It is an amenable number.

431690267313 is a deficient number, since it is larger than the sum of its proper divisors (217887480627).

431690267313 is a wasteful number, since it uses less digits than its factorization.

431690267313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38901678 (or 38901669 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 431690267313 in words is "four hundred thirty-one billion, six hundred ninety million, two hundred sixty-seven thousand, three hundred thirteen".