400975552790 has 32 divisors (see below), whose sum is σ = 734051561760. Its totient is φ = 157658335744.

The previous prime is 400975552777. The next prime is 400975552823. The reversal of 400975552790 is 97255579004.

It is a Curzon number.

It is a congruent number.

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, 9674792 + ... + 9716148.

It is an arithmetic number, because the mean of its divisors is an integer number (22939111305).

Almost surely, 2^400975552790 is an apocalyptic number.

400975552790 is a deficient number, since it is larger than the sum of its proper divisors (333076008970).

400975552790 is a wasteful number, since it uses less digits than its factorization.

400975552790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57856.

The product of its (nonzero) digits is 3969000, while the sum is 53.

The spelling of 400975552790 in words is "four hundred billion, nine hundred seventy-five million, five hundred fifty-two thousand, seven hundred ninety".