401761843912 has 64 divisors (see below), whose sum is σ = 885448065600. Its totient is φ = 168486032640.

The previous prime is 401761843909. The next prime is 401761843921. The reversal of 401761843912 is 219348167104.

It is a super-2 number, since 2×401761843912² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2196639 + ... + 2372497.

It is an arithmetic number, because the mean of its divisors is an integer number (13835126025).

Almost surely, 2^401761843912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401761843912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442724032800).

401761843912 is an abundant number, since it is smaller than the sum of its proper divisors (483686221688).

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

401761843912 is a wasteful number, since it uses less digits than its factorization.

401761843912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177886 (or 177882 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 401761843912 in words is "four hundred one billion, seven hundred sixty-one million, eight hundred forty-three thousand, nine hundred twelve".