748569309601 has 9 divisors (see below), whose sum is σ = 751486806003. Its totient is φ = 745663106160.

The previous prime is 748569309571. The next prime is 748569309613. The reversal of 748569309601 is 106903965847.

The square root of 748569309601 is 865199.

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., 505875140001 + 242694169600 = 711249^2 + 492640^2 .

It is not a de Polignac number, because 748569309601 - 2²³ = 748560920993 is a prime.

It is a super-2 number, since 2×748569309601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748569309641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 243119380 + ... + 243122458.

Almost surely, 2^748569309601 is an apocalyptic number.

748569309601 is the 865199-th square number.

748569309601 is the 432600-th centered octagonal number.

It is an amenable number.

748569309601 is a deficient number, since it is larger than the sum of its proper divisors (2917496402).

748569309601 is an frugal number, since it uses more digits than its factorization.

748569309601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 748569309601 in words is "seven hundred forty-eight billion, five hundred sixty-nine million, three hundred nine thousand, six hundred one".