401643134046 has 72 divisors (see below), whose sum is σ = 1104332354424. Its totient is φ = 104322889440.

The previous prime is 401643134033. The next prime is 401643134077. The reversal of 401643134046 is 640431346104.

401643134046 is a `hidden beast` number, since 4 + 0 + 1 + 643 + 1 + 3 + 4 + 0 + 4 + 6 = 666.

It is a super-2 number, since 2×401643134046² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401643134046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20689285 + ... + 20708688.

It is an arithmetic number, because the mean of its divisors is an integer number (15337949367).

Almost surely, 2^401643134046 is an apocalyptic number.

401643134046 is an abundant number, since it is smaller than the sum of its proper divisors (702689220378).

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

401643134046 is a wasteful number, since it uses less digits than its factorization.

401643134046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41398006 (or 41397996 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 401643134046 in words is "four hundred one billion, six hundred forty-three million, one hundred thirty-four thousand, forty-six".