743359525489 has 9 divisors (see below), whose sum is σ = 864731366667. Its totient is φ = 637160134464.

The previous prime is 743359525439. The next prime is 743359525541. The reversal of 743359525489 is 984525953347.

It is a happy number.

The square root of 743359525489 is 862183.

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

743359525489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 571864151089 + 171495374400 = 756217^2 + 414120^2 .

It is not a de Polignac number, because 743359525489 - 2³¹ = 741212041841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 743359525489.

It is not an unprimeable number, because it can be changed into a prime (743359525429) 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, 5973697 + ... + 6096865.

It is an arithmetic number, because the mean of its divisors is an integer number (96081262963).

Almost surely, 2^743359525489 is an apocalyptic number.

743359525489 is the 862183-rd square number.

743359525489 is the 431092-nd centered octagonal number.

It is an amenable number.

743359525489 is a deficient number, since it is larger than the sum of its proper divisors (121371841178).

743359525489 is an frugal number, since it uses more digits than its factorization.

743359525489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246352 (or 123176 counting only the distinct ones).

The product of its digits is 163296000, while the sum is 64.

Multiplying 743359525489 by its sum of digits (64), we get a square (47575009631296 = 6897464²).

The spelling of 743359525489 in words is "seven hundred forty-three billion, three hundred fifty-nine million, five hundred twenty-five thousand, four hundred eighty-nine".