401179473664 has 72 divisors (see below), whose sum is σ = 840635389440. Its totient is φ = 190828723200.

The previous prime is 401179473623. The next prime is 401179473671. The reversal of 401179473664 is 466374971104.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 39819 + ... + 896629.

It is an arithmetic number, because the mean of its divisors is an integer number (11675491520).

Almost surely, 2^401179473664 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 401179473664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420317694720).

401179473664 is an abundant number, since it is smaller than the sum of its proper divisors (439455915776).

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

401179473664 is an equidigital number, since it uses as much as digits as its factorization.

401179473664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856917 (or 856903 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 401179473664 in words is "four hundred one billion, one hundred seventy-nine million, four hundred seventy-three thousand, six hundred sixty-four".