16272987825 has 24 divisors (see below), whose sum is σ = 26992348768. Its totient is φ = 8650644480.

The previous prime is 16272987823. The next prime is 16272987833. The reversal of 16272987825 is 52878927261.

It is not a de Polignac number, because 16272987825 - 2¹ = 16272987823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16272987823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330352 + ... + 376401.

Almost surely, 2^16272987825 is an apocalyptic number.

16272987825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16272987825 is a deficient number, since it is larger than the sum of its proper divisors (10719360943).

16272987825 is a wasteful number, since it uses less digits than its factorization.

16272987825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707073 (or 707068 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The spelling of 16272987825 in words is "sixteen billion, two hundred seventy-two million, nine hundred eighty-seven thousand, eight hundred twenty-five".