3287987056557 has 40 divisors (see below), whose sum is σ = 5663029369536. Its totient is φ = 1862222721408.

The previous prime is 3287987056547. The next prime is 3287987056579. The reversal of 3287987056557 is 7556507897823.

3287987056557 is a `hidden beast` number, since 3 + 2 + 8 + 7 + 9 + 8 + 7 + 0 + 565 + 57 = 666.

It is not a de Polignac number, because 3287987056557 - 2⁷ = 3287987056429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3287987056547) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25594863 + ... + 25723004.

Almost surely, 2^{3287987056557} is an apocalyptic number.

It is an amenable number.

3287987056557 is a deficient number, since it is larger than the sum of its proper divisors (2375042312979).

3287987056557 is a wasteful number, since it uses less digits than its factorization.

3287987056557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51317999 (or 51317990 counting only the distinct ones).

The product of its (nonzero) digits is 889056000, while the sum is 72.

The spelling of 3287987056557 in words is "three trillion, two hundred eighty-seven billion, nine hundred eighty-seven million, fifty-six thousand, five hundred fifty-seven".