431431222516 has 12 divisors (see below), whose sum is σ = 862862445088. Its totient is φ = 184899095352.

The previous prime is 431431222499. The next prime is 431431222517. The reversal of 431431222516 is 615222134134.

431431222516 is an admirable number.

It is a super-2 number, since 2×431431222516² (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 (431431222517) 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, 7704128946 + ... + 7704129001.

Almost surely, 2^431431222516 is an apocalyptic number.

It is an amenable number.

431431222516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

431431222516 is a wasteful number, since it uses less digits than its factorization.

431431222516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15408257958 (or 15408257956 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The spelling of 431431222516 in words is "four hundred thirty-one billion, four hundred thirty-one million, two hundred twenty-two thousand, five hundred sixteen".