400465555775 has 12 divisors (see below), whose sum is σ = 496601865000. Its totient is φ = 320356589280.

The previous prime is 400465555759. The next prime is 400465555801. The reversal of 400465555775 is 577555564004.

It is a happy number.

It is not a de Polignac number, because 400465555775 - 2⁴ = 400465555759 is a prime.

It is a super-2 number, since 2×400465555775² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132716 + ... + 904734.

It is an arithmetic number, because the mean of its divisors is an integer number (41383488750).

Almost surely, 2^400465555775 is an apocalyptic number.

400465555775 is a deficient number, since it is larger than the sum of its proper divisors (96136309225).

400465555775 is a wasteful number, since it uses less digits than its factorization.

400465555775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792778 (or 792773 counting only the distinct ones).

The product of its (nonzero) digits is 14700000, while the sum is 53.

The spelling of 400465555775 in words is "four hundred billion, four hundred sixty-five million, five hundred fifty-five thousand, seven hundred seventy-five".