56384912872 has 8 divisors (see below), whose sum is σ = 105721711650. Its totient is φ = 28192456432.

The previous prime is 56384912863. The next prime is 56384912887. The reversal of 56384912872 is 27821948365.

It can be written as a sum of positive squares in only one way, i.e., 30375609796 + 26009303076 = 174286^2 + 161274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3524057047 + ... + 3524057062.

Almost surely, 2^56384912872 is an apocalyptic number.

It is an amenable number.

56384912872 is a deficient number, since it is larger than the sum of its proper divisors (49336798778).

56384912872 is a wasteful number, since it uses less digits than its factorization.

56384912872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048114115 (or 7048114111 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 56384912872 in words is "fifty-six billion, three hundred eighty-four million, nine hundred twelve thousand, eight hundred seventy-two".