400576511252564 has 24 divisors (see below), whose sum is σ = 711473186729760. Its totient is φ = 197298470277216.

The previous prime is 400576511252513. The next prime is 400576511252641. The reversal of 400576511252564 is 465252115675004.

It is a happy number.

It is a super-3 number, since 3×400576511252564³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159315947 + ... + 161810765.

It is an arithmetic number, because the mean of its divisors is an integer number (29644716113740).

Almost surely, 2^{400576511252564} is an apocalyptic number.

It is an amenable number.

400576511252564 is a deficient number, since it is larger than the sum of its proper divisors (310896675477196).

400576511252564 is a wasteful number, since it uses less digits than its factorization.

400576511252564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094007 (or 3094005 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 53.

The spelling of 400576511252564 in words is "four hundred trillion, five hundred seventy-six billion, five hundred eleven million, two hundred fifty-two thousand, five hundred sixty-four".