431240633516 has 96 divisors (see below), whose sum is σ = 961963333632. Its totient is φ = 164260362240.

The previous prime is 431240633507. The next prime is 431240633521. The reversal of 431240633516 is 615336042134.

It is a self number, because there is not a number n which added to its sum of digits gives 431240633516.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13548116 + ... + 13579908.

It is an arithmetic number, because the mean of its divisors is an integer number (10020451392).

Almost surely, 2^431240633516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431240633516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480981666816).

431240633516 is an abundant number, since it is smaller than the sum of its proper divisors (530722700116).

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

431240633516 is a wasteful number, since it uses less digits than its factorization.

431240633516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32799 (or 32797 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 431240633516 in words is "four hundred thirty-one billion, two hundred forty million, six hundred thirty-three thousand, five hundred sixteen".