749907504784 has 15 divisors (see below), whose sum is σ = 1452952501833. Its totient is φ = 374952020448.

The previous prime is 749907504767. The next prime is 749907504791. The reversal of 749907504784 is 487405709947.

It is a happy number.

The square root of 749907504784 is 865972.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 447266688400 + 302640816384 = 668780^2 + 550128^2 .

It is a super-2 number, since 2×749907504784² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3355642 + ... + 3572134.

Almost surely, 2^749907504784 is an apocalyptic number.

749907504784 is the 865972-nd square number.

It is an amenable number.

749907504784 is a deficient number, since it is larger than the sum of its proper divisors (703044997049).

749907504784 is an frugal number, since it uses more digits than its factorization.

749907504784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432994 (or 216495 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 64.

Multiplying 749907504784 by its sum of digits (64), we get a square (47994080306176 = 6927776²).

The spelling of 749907504784 in words is "seven hundred forty-nine billion, nine hundred seven million, five hundred four thousand, seven hundred eighty-four".