400657315063 has 4 divisors (see below), whose sum is σ = 401012194240. Its totient is φ = 400302435888.

The previous prime is 400657315043. The next prime is 400657315139. The reversal of 400657315063 is 360513756004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400657315063 - 2⁵ = 400657315031 is a prime.

It is a super-2 number, since 2×400657315063² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400657315043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177437895 + ... + 177440152.

It is an arithmetic number, because the mean of its divisors is an integer number (100253048560).

Almost surely, 2^400657315063 is an apocalyptic number.

400657315063 is a deficient number, since it is larger than the sum of its proper divisors (354879177).

400657315063 is a wasteful number, since it uses less digits than its factorization.

400657315063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354879176.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 400657315063 in words is "four hundred billion, six hundred fifty-seven million, three hundred fifteen thousand, sixty-three".