564122978 has 16 divisors (see below), whose sum is σ = 883846080. Its totient is φ = 269531856.

The previous prime is 564122971. The next prime is 564122983. The reversal of 564122978 is 879221465.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (564122971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45893 + ... + 56871.

It is an arithmetic number, because the mean of its divisors is an integer number (55240380).

Almost surely, 2^564122978 is an apocalyptic number.

564122978 is a deficient number, since it is larger than the sum of its proper divisors (319723102).

564122978 is a wasteful number, since it uses less digits than its factorization.

564122978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121.

The product of its digits is 241920, while the sum is 44.

The square root of 564122978 is about 23751.2731869262. The cubic root of 564122978 is about 826.2749691828.

The spelling of 564122978 in words is "five hundred sixty-four million, one hundred twenty-two thousand, nine hundred seventy-eight".