431890555616 has 48 divisors (see below), whose sum is σ = 915756256800. Its totient is φ = 199319904768.

The previous prime is 431890555573. The next prime is 431890555667. The reversal of 431890555616 is 616555098134.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7809470 + ... + 7864578.

It is an arithmetic number, because the mean of its divisors is an integer number (19078255350).

Almost surely, 2^431890555616 is an apocalyptic number.

It is an amenable number.

431890555616 is an abundant number, since it is smaller than the sum of its proper divisors (483865701184).

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

431890555616 is a wasteful number, since it uses less digits than its factorization.

431890555616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73971 (or 73963 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 431890555616 in words is "four hundred thirty-one billion, eight hundred ninety million, five hundred fifty-five thousand, six hundred sixteen".