564457123126 has 16 divisors (see below), whose sum is σ = 911879597664. Its totient is φ = 260500316544.

The previous prime is 564457123073. The next prime is 564457123193. The reversal of 564457123126 is 621321754465.

It is a super-2 number, since 2×564457123126² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 385155 + ... + 1130158.

It is an arithmetic number, because the mean of its divisors is an integer number (56992474854).

Almost surely, 2^564457123126 is an apocalyptic number.

564457123126 is a deficient number, since it is larger than the sum of its proper divisors (347422474538).

564457123126 is a wasteful number, since it uses less digits than its factorization.

564457123126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529655.

The product of its digits is 1209600, while the sum is 46.

The spelling of 564457123126 in words is "five hundred sixty-four billion, four hundred fifty-seven million, one hundred twenty-three thousand, one hundred twenty-six".