401975832172 has 12 divisors (see below), whose sum is σ = 704856234096. Its totient is φ = 200588336720.

The previous prime is 401975832157. The next prime is 401975832211. The reversal of 401975832172 is 271238579104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99892579 + ... + 99896602.

It is an arithmetic number, because the mean of its divisors is an integer number (58738019508).

Almost surely, 2^401975832172 is an apocalyptic number.

It is an amenable number.

401975832172 is a deficient number, since it is larger than the sum of its proper divisors (302880401924).

401975832172 is a wasteful number, since it uses less digits than its factorization.

401975832172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199789688 (or 199789686 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 401975832172 in words is "four hundred one billion, nine hundred seventy-five million, eight hundred thirty-two thousand, one hundred seventy-two".