56377405478 has 4 divisors (see below), whose sum is σ = 84566108220. Its totient is φ = 28188702738.

The previous prime is 56377405387. The next prime is 56377405481. The reversal of 56377405478 is 87450477365.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14094351368 + ... + 14094351371.

It is an arithmetic number, because the mean of its divisors is an integer number (21141527055).

Almost surely, 2^56377405478 is an apocalyptic number.

56377405478 is a deficient number, since it is larger than the sum of its proper divisors (28188702742).

56377405478 is a wasteful number, since it uses less digits than its factorization.

56377405478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28188702741.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 56377405478 in words is "fifty-six billion, three hundred seventy-seven million, four hundred five thousand, four hundred seventy-eight".