28415056887 has 24 divisors (see below), whose sum is σ = 46926897056. Its totient is φ = 16230424896.

The previous prime is 28415056883. The next prime is 28415056903. The reversal of 28415056887 is 78865051482.

28415056887 is a `hidden beast` number, since 28 + 4 + 1 + 50 + 568 + 8 + 7 = 666.

It is not a de Polignac number, because 28415056887 - 2² = 28415056883 is a prime.

It is a super-2 number, since 2×28415056887² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28415056883) 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, 60993 + ... + 246069.

Almost surely, 2^28415056887 is an apocalyptic number.

28415056887 is a deficient number, since it is larger than the sum of its proper divisors (18511840169).

28415056887 is a wasteful number, since it uses less digits than its factorization.

28415056887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187527 (or 187524 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 28415056887 in words is "twenty-eight billion, four hundred fifteen million, fifty-six thousand, eight hundred eighty-seven".