16987895425 has 24 divisors (see below), whose sum is σ = 21242251520. Its totient is φ = 13476196800.

The previous prime is 16987895411. The next prime is 16987895453. The reversal of 16987895425 is 52459878961.

It is a happy number.

It is not a de Polignac number, because 16987895425 - 2¹⁵ = 16987862657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3441259 + ... + 3446191.

Almost surely, 2^16987895425 is an apocalyptic number.

It is an amenable number.

16987895425 is a deficient number, since it is larger than the sum of its proper divisors (4254356095).

16987895425 is a wasteful number, since it uses less digits than its factorization.

16987895425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073 (or 6068 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 64.

The spelling of 16987895425 in words is "sixteen billion, nine hundred eighty-seven million, eight hundred ninety-five thousand, four hundred twenty-five".