749694490801 has 27 divisors (see below), whose sum is σ = 798712577451. Its totient is φ = 703581970608.

The previous prime is 749694490733. The next prime is 749694490807. The reversal of 749694490801 is 108094496947.

The square root of 749694490801 is 865849.

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., 698229031201 + 51465459600 = 835601^2 + 226860^2 .

It is not a de Polignac number, because 749694490801 - 2⁷ = 749694490673 is a prime.

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 749694490801.

It is not an unprimeable number, because it can be changed into a prime (749694490807) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3273774955 + ... + 3273775183.

It is an arithmetic number, because the mean of its divisors is an integer number (29581947313).

Almost surely, 2^749694490801 is an apocalyptic number.

749694490801 is the 865849-th square number.

749694490801 is the 432925-th centered octagonal number.

It is an amenable number.

749694490801 is a deficient number, since it is larger than the sum of its proper divisors (49018086650).

749694490801 is an frugal number, since it uses more digits than its factorization.

749694490801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 749694490801 in words is "seven hundred forty-nine billion, six hundred ninety-four million, four hundred ninety thousand, eight hundred one".