401915841252 has 12 divisors (see below), whose sum is σ = 937803629616. Its totient is φ = 133971947080.

The previous prime is 401915841241. The next prime is 401915841409. The reversal of 401915841252 is 252148519104.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16746493374 + ... + 16746493397.

It is an arithmetic number, because the mean of its divisors is an integer number (78150302468).

Almost surely, 2^401915841252 is an apocalyptic number.

It is an amenable number.

401915841252 is an abundant number, since it is smaller than the sum of its proper divisors (535887788364).

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

401915841252 is a wasteful number, since it uses less digits than its factorization.

401915841252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33492986778 (or 33492986776 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 401915841252 in words is "four hundred one billion, nine hundred fifteen million, eight hundred forty-one thousand, two hundred fifty-two".