561478086504 has 48 divisors (see below), whose sum is σ = 1521668584800. Its totient is φ = 187036437024.

The previous prime is 561478086497. The next prime is 561478086511. The reversal of 561478086504 is 405680874165.

561478086504 is a `hidden beast` number, since 5 + 61 + 4 + 78 + 0 + 8 + 6 + 504 = 666.

It is an interprime number because it is at equal distance from previous prime (561478086497) and next prime (561478086511).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2450524 + ... + 2669835.

It is an arithmetic number, because the mean of its divisors is an integer number (31701428850).

Almost surely, 2^561478086504 is an apocalyptic number.

It is an amenable number.

561478086504 is an abundant number, since it is smaller than the sum of its proper divisors (960190498296).

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

561478086504 is a wasteful number, since it uses less digits than its factorization.

561478086504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121894 (or 5121887 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 561478086504 in words is "five hundred sixty-one billion, four hundred seventy-eight million, eighty-six thousand, five hundred four".