400866088072368 has 80 divisors (see below), whose sum is σ = 1097550172578816. Its totient is φ = 125639929205760.

The previous prime is 400866088072367. The next prime is 400866088072369. The reversal of 400866088072368 is 863270880668004.

It is an interprime number because it is at equal distance from previous prime (400866088072367) and next prime (400866088072369).

It is a junction number, because it is equal to n+sod(n) for n = 400866088072299 and 400866088072308.

It is not an unprimeable number, because it can be changed into a prime (400866088072367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237401896 + ... + 239084487.

Almost surely, 2^{400866088072368} is an apocalyptic number.

400866088072368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

400866088072368 is an abundant number, since it is smaller than the sum of its proper divisors (696684084506448).

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

400866088072368 is a wasteful number, since it uses less digits than its factorization.

400866088072368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476487442 (or 476487436 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 66.

The spelling of 400866088072368 in words is "four hundred trillion, eight hundred sixty-six billion, eighty-eight million, seventy-two thousand, three hundred sixty-eight".