744568540464 has 240 divisors, whose sum is σ = 2312395434720. Its totient is φ = 205705543680.

The previous prime is 744568540439. The next prime is 744568540477. The reversal of 744568540464 is 464045865447.

It is a super-2 number, since 2×744568540464² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10862652 + ... + 10930980.

It is an arithmetic number, because the mean of its divisors is an integer number (9634980978).

Almost surely, 2^744568540464 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 744568540464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156197717360).

744568540464 is an abundant number, since it is smaller than the sum of its proper divisors (1567826894256).

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

744568540464 is a wasteful number, since it uses less digits than its factorization.

744568540464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68508 (or 68495 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 57.

The spelling of 744568540464 in words is "seven hundred forty-four billion, five hundred sixty-eight million, five hundred forty thousand, four hundred sixty-four".