749664577728 has 84 divisors (see below), whose sum is σ = 2344121644488. Its totient is φ = 227171082240.

The previous prime is 749664577709. The next prime is 749664577789. The reversal of 749664577728 is 827775466947.

749664577728 is a `hidden beast` number, since 7 + 49 + 6 + 6 + 4 + 577 + 7 + 2 + 8 = 666.

749664577728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59152801 + ... + 59165472.

Almost surely, 2^749664577728 is an apocalyptic number.

It is an amenable number.

749664577728 is an abundant number, since it is smaller than the sum of its proper divisors (1594457066760).

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

749664577728 is a wasteful number, since it uses less digits than its factorization.

749664577728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118318302 (or 118318289 counting only the distinct ones).

The product of its digits is 995742720, while the sum is 72.

The spelling of 749664577728 in words is "seven hundred forty-nine billion, six hundred sixty-four million, five hundred seventy-seven thousand, seven hundred twenty-eight".