431415139684 has 9 divisors (see below), whose sum is σ = 754978793331. Its totient is φ = 215706913020.

The previous prime is 431415139657. The next prime is 431415139709. The reversal of 431415139684 is 486931514134.

The square root of 431415139684 is 656822.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×431415139684² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1149439 + ... + 1477849.

Almost surely, 2^431415139684 is an apocalyptic number.

431415139684 is the 656822-nd square number.

It is an amenable number.

431415139684 is a deficient number, since it is larger than the sum of its proper divisors (323563653647).

431415139684 is an frugal number, since it uses more digits than its factorization.

431415139684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656826 (or 328413 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

Multiplying 431415139684 by its sum of digits (49), we get a square (21139341844516 = 4597754²).

The spelling of 431415139684 in words is "four hundred thirty-one billion, four hundred fifteen million, one hundred thirty-nine thousand, six hundred eighty-four".