400542625626 has 64 divisors (see below), whose sum is σ = 963022072320. Its totient is φ = 109434306240.

The previous prime is 400542625573. The next prime is 400542625631. The reversal of 400542625626 is 626526245004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5391396 + ... + 5465183.

It is an arithmetic number, because the mean of its divisors is an integer number (15047219880).

Almost surely, 2^400542625626 is an apocalyptic number.

400542625626 is an abundant number, since it is smaller than the sum of its proper divisors (562479446694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400542625626 is a wasteful number, since it uses less digits than its factorization.

400542625626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10856651.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 400542625626 in words is "four hundred billion, five hundred forty-two million, six hundred twenty-five thousand, six hundred twenty-six".