401641693684 has 48 divisors (see below), whose sum is σ = 876462604416. Its totient is φ = 156456374400.

The previous prime is 401641693571. The next prime is 401641693699. The reversal of 401641693684 is 486396146104.

It is a super-2 number, since 2×401641693684² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 1693942 + ... + 1916434.

It is an arithmetic number, because the mean of its divisors is an integer number (18259637592).

Almost surely, 2^401641693684 is an apocalyptic number.

401641693684 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

401641693684 is an abundant number, since it is smaller than the sum of its proper divisors (474820910732).

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

401641693684 is a wasteful number, since it uses less digits than its factorization.

401641693684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228376 (or 228374 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 401641693684 in words is "four hundred one billion, six hundred forty-one million, six hundred ninety-three thousand, six hundred eighty-four".