748569912721 has 8 divisors (see below), whose sum is σ = 788732625600. Its totient is φ = 708483629520.

The previous prime is 748569912707. The next prime is 748569912749. The reversal of 748569912721 is 127219965847.

748569912721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 748569912721 - 2²⁵ = 748536358289 is a prime.

It is a super-2 number, since 2×748569912721² (a number of 25 digits) contains 22 as substring.

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 748569912721.

It is not an unprimeable number, because it can be changed into a prime (748569912421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19087306 + ... + 19126483.

It is an arithmetic number, because the mean of its divisors is an integer number (98591578200).

Almost surely, 2^748569912721 is an apocalyptic number.

It is an amenable number.

748569912721 is a deficient number, since it is larger than the sum of its proper divisors (40162712879).

748569912721 is a wasteful number, since it uses less digits than its factorization.

748569912721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38214839.

The product of its digits is 15240960, while the sum is 61.

The spelling of 748569912721 in words is "seven hundred forty-eight billion, five hundred sixty-nine million, nine hundred twelve thousand, seven hundred twenty-one".