564211515213978 has 32 divisors (see below), whose sum is σ = 1177486090704000. Its totient is φ = 179893344878016.

The previous prime is 564211515213977. The next prime is 564211515214049. The reversal of 564211515213978 is 879312515112465.

It is not an unprimeable number, because it can be changed into a prime (564211515213977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225926728 + ... + 228410396.

It is an arithmetic number, because the mean of its divisors is an integer number (36796440334500).

Almost surely, 2^{564211515213978} is an apocalyptic number.

564211515213978 is an abundant number, since it is smaller than the sum of its proper divisors (613274575490022).

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

564211515213978 is a wasteful number, since it uses less digits than its factorization.

564211515213978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129846.

The product of its digits is 18144000, while the sum is 60.

The spelling of 564211515213978 in words is "five hundred sixty-four trillion, two hundred eleven billion, five hundred fifteen million, two hundred thirteen thousand, nine hundred seventy-eight".