56785546478 has 16 divisors (see below), whose sum is σ = 86666863680. Its totient is φ = 27897583200.

The previous prime is 56785546457. The next prime is 56785546501. The reversal of 56785546478 is 87464558765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132518 + ... + 362121.

It is an arithmetic number, because the mean of its divisors is an integer number (5416678980).

Almost surely, 2^56785546478 is an apocalyptic number.

56785546478 is a deficient number, since it is larger than the sum of its proper divisors (29881317202).

56785546478 is a wasteful number, since it uses less digits than its factorization.

56785546478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495643.

The product of its digits is 225792000, while the sum is 65.

The spelling of 56785546478 in words is "fifty-six billion, seven hundred eighty-five million, five hundred forty-six thousand, four hundred seventy-eight".