56385971887 has 8 divisors (see below), whose sum is σ = 66012845472. Its totient is φ = 47152032000.

The previous prime is 56385971861. The next prime is 56385971921. The reversal of 56385971887 is 78817958365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56385971887 - 2³⁵ = 22026233519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56385971857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98233114 + ... + 98233687.

It is an arithmetic number, because the mean of its divisors is an integer number (8251605684).

Almost surely, 2^56385971887 is an apocalyptic number.

56385971887 is a deficient number, since it is larger than the sum of its proper divisors (9626873585).

56385971887 is a wasteful number, since it uses less digits than its factorization.

56385971887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196466849.

The product of its digits is 101606400, while the sum is 67.

The spelling of 56385971887 in words is "fifty-six billion, three hundred eighty-five million, nine hundred seventy-one thousand, eight hundred eighty-seven".