431285520597 has 4 divisors (see below), whose sum is σ = 575047360800. Its totient is φ = 287523680396.

The previous prime is 431285520583. The next prime is 431285520623. The reversal of 431285520597 is 795025582134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431285520597 - 2⁷ = 431285520469 is a prime.

It is a super-2 number, since 2×431285520597² (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 (431285520697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71880920097 + ... + 71880920102.

It is an arithmetic number, because the mean of its divisors is an integer number (143761840200).

Almost surely, 2^431285520597 is an apocalyptic number.

It is an amenable number.

431285520597 is a deficient number, since it is larger than the sum of its proper divisors (143761840203).

431285520597 is a wasteful number, since it uses less digits than its factorization.

431285520597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143761840202.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 431285520597 in words is "four hundred thirty-one billion, two hundred eighty-five million, five hundred twenty thousand, five hundred ninety-seven".