745468194025 has 9 divisors (see below), whose sum is σ = 924385913733. Its totient is φ = 596371101600.

The previous prime is 745468194013. The next prime is 745468194043. The reversal of 745468194025 is 520491864547.

The square root of 745468194025 is 863405.

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

It can be written as a sum of positive squares in 4 ways, for example, as 140874860889 + 604593333136 = 375333^2 + 777556^2 .

It is not a de Polignac number, because 745468194025 - 2²¹ = 745466096873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4230685 + ... + 4403365.

Almost surely, 2^745468194025 is an apocalyptic number.

745468194025 is the 863405-th square number.

745468194025 is the 431703-rd centered octagonal number.

It is an amenable number.

745468194025 is a deficient number, since it is larger than the sum of its proper divisors (178917719708).

745468194025 is an frugal number, since it uses more digits than its factorization.

745468194025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345372 (or 172686 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 745468194025 in words is "seven hundred forty-five billion, four hundred sixty-eight million, one hundred ninety-four thousand, twenty-five".