401329474866 has 12 divisors (see below), whose sum is σ = 869547195582. Its totient is φ = 133776491616.

The previous prime is 401329474789. The next prime is 401329474867. The reversal of 401329474866 is 668474923104.

401329474866 is a `hidden beast` number, since 40 + 1 + 32 + 94 + 7 + 486 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 264114794241 + 137214680625 = 513921^2 + 370425^2 .

It is a super-2 number, since 2×401329474866² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (401329474867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11148040951 + ... + 11148040986.

Almost surely, 2^401329474866 is an apocalyptic number.

401329474866 is an abundant number, since it is smaller than the sum of its proper divisors (468217720716).

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

401329474866 is a wasteful number, since it uses less digits than its factorization.

401329474866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22296081945 (or 22296081942 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 401329474866 in words is "four hundred one billion, three hundred twenty-nine million, four hundred seventy-four thousand, eight hundred sixty-six".