401568608738 has 32 divisors (see below), whose sum is σ = 661214473920. Its totient is φ = 181393128000.

The previous prime is 401568608729. The next prime is 401568608741. The reversal of 401568608738 is 837806865104.

It is a super-2 number, since 2×401568608738² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5654993 + ... + 5725563.

It is an arithmetic number, because the mean of its divisors is an integer number (20662952310).

Almost surely, 2^401568608738 is an apocalyptic number.

401568608738 is a deficient number, since it is larger than the sum of its proper divisors (259645865182).

401568608738 is a wasteful number, since it uses less digits than its factorization.

401568608738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72194.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 401568608738 in words is "four hundred one billion, five hundred sixty-eight million, six hundred eight thousand, seven hundred thirty-eight".