6391401443592 has 128 divisors (see below), whose sum is σ = 17512004390400. Its totient is φ = 1927802419200.

The previous prime is 6391401443591. The next prime is 6391401443611. The reversal of 6391401443592 is 2953441041936.

It is not an unprimeable number, because it can be changed into a prime (6391401443591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324739992 + ... + 324759672.

It is an arithmetic number, because the mean of its divisors is an integer number (136812534300).

Almost surely, 2^{6391401443592} 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 6391401443592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8756002195200).

6391401443592 is an abundant number, since it is smaller than the sum of its proper divisors (11120602946808).

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

6391401443592 is a wasteful number, since it uses less digits than its factorization.

6391401443592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25347 (or 25343 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 6391401443592 in words is "six trillion, three hundred ninety-one billion, four hundred one million, four hundred forty-three thousand, five hundred ninety-two".