16431904984 has 16 divisors (see below), whose sum is σ = 33610714920. Its totient is φ = 7469047680.

The previous prime is 16431904969. The next prime is 16431905003. The reversal of 16431904984 is 48940913461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93363009 + ... + 93363184.

Almost surely, 2^16431904984 is an apocalyptic number.

It is an amenable number.

16431904984 is an abundant number, since it is smaller than the sum of its proper divisors (17178809936).

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

16431904984 is a wasteful number, since it uses less digits than its factorization.

16431904984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186726210 (or 186726206 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 16431904984 in words is "sixteen billion, four hundred thirty-one million, nine hundred four thousand, nine hundred eighty-four".