6459474781344 has 96 divisors (see below), whose sum is σ = 18282957142464. Its totient is φ = 1985079674880.

The previous prime is 6459474781339. The next prime is 6459474781391. The reversal of 6459474781344 is 4431874749546.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×6459474781344² (a number of 26 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, 2178909 + ... + 4203164.

It is an arithmetic number, because the mean of its divisors is an integer number (190447470234).

Almost surely, 2^{6459474781344} is an apocalyptic number.

It is an amenable number.

6459474781344 is an abundant number, since it is smaller than the sum of its proper divisors (11823482361120).

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

6459474781344 is a wasteful number, since it uses less digits than its factorization.

6459474781344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382910 (or 6382902 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 66.

The spelling of 6459474781344 in words is "six trillion, four hundred fifty-nine billion, four hundred seventy-four million, seven hundred eighty-one thousand, three hundred forty-four".