56415203478 has 12 divisors (see below), whose sum is σ = 122232940908. Its totient is φ = 18805067820.

The previous prime is 56415203441. The next prime is 56415203489. The reversal of 56415203478 is 87430251465.

56415203478 is a `hidden beast` number, since 56 + 4 + 1 + 520 + 3 + 4 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1567088968 + ... + 1567089003.

It is an arithmetic number, because the mean of its divisors is an integer number (10186078409).

Almost surely, 2^56415203478 is an apocalyptic number.

56415203478 is an abundant number, since it is smaller than the sum of its proper divisors (65817737430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56415203478 is a wasteful number, since it uses less digits than its factorization.

56415203478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134177979 (or 3134177976 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 56415203478 in words is "fifty-six billion, four hundred fifteen million, two hundred three thousand, four hundred seventy-eight".