56988633688871 has 2 divisors, whose sum is σ = 56988633688872. Its totient is φ = 56988633688870.

The previous prime is 56988633688801. The next prime is 56988633688979. The reversal of 56988633688871 is 17888633688965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56988633688871 - 2¹⁰ = 56988633687847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56988633688801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28494316844435 + 28494316844436.

It is an arithmetic number, because the mean of its divisors is an integer number (28494316844436).

Almost surely, 2^{56988633688871} is an apocalyptic number.

56988633688871 is a deficient number, since it is larger than the sum of its proper divisors (1).

56988633688871 is an equidigital number, since it uses as much as digits as its factorization.

56988633688871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20065812480, while the sum is 86.

The spelling of 56988633688871 in words is "fifty-six trillion, nine hundred eighty-eight billion, six hundred thirty-three million, six hundred eighty-eight thousand, eight hundred seventy-one".