749991584322 has 30 divisors (see below), whose sum is σ = 1680561397449. Its totient is φ = 249993520560.

The previous prime is 749991584267. The next prime is 749991584369. The reversal of 749991584322 is 223485199947.

749991584322 is a `hidden beast` number, since 7 + 49 + 9 + 9 + 1 + 584 + 3 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 493802749521 + 256188834801 = 702711^2 + 506151^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=612369.

It is a self number, because there is not a number n which added to its sum of digits gives 749991584322.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 10988622 + ... + 11056662.

Almost surely, 2^749991584322 is an apocalyptic number.

749991584322 is an abundant number, since it is smaller than the sum of its proper divisors (930569813127).

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

749991584322 is an frugal number, since it uses more digits than its factorization.

749991584322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136096 (or 68046 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 749991584322 in words is "seven hundred forty-nine billion, nine hundred ninety-one million, five hundred eighty-four thousand, three hundred twenty-two".