749457266944 has 81 divisors (see below), whose sum is σ = 1522629986241. Its totient is φ = 368169999360.

The previous prime is 749457266927. The next prime is 749457266951. The reversal of 749457266944 is 449662754947.

The square root of 749457266944 is 865712.

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., 24370956544 + 725086310400 = 156112^2 + 851520^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 749457266944.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 844934469 + ... + 844935355.

Almost surely, 2^749457266944 is an apocalyptic number.

749457266944 is the 865712-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749457266944

749457266944 is an abundant number, since it is smaller than the sum of its proper divisors (773172719297).

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

749457266944 is an frugal number, since it uses more digits than its factorization.

749457266944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912 (or 950 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 67.

The spelling of 749457266944 in words is "seven hundred forty-nine billion, four hundred fifty-seven million, two hundred sixty-six thousand, nine hundred forty-four".