745568358641 has 8 divisors (see below), whose sum is σ = 798295269960. Its totient is φ = 693826997248.

The previous prime is 745568358631. The next prime is 745568358653. The reversal of 745568358641 is 146853865547.

It can be written as a sum of positive squares in 4 ways, for example, as 245945573041 + 499622785600 = 495929^2 + 706840^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 745568358641 - 2³⁸ = 470690451697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745568358631) 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, 246385916 + ... + 246388941.

It is an arithmetic number, because the mean of its divisors is an integer number (99786908745).

Almost surely, 2^745568358641 is an apocalyptic number.

It is an amenable number.

745568358641 is a deficient number, since it is larger than the sum of its proper divisors (52726911319).

745568358641 is a wasteful number, since it uses less digits than its factorization.

745568358641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492774963.

The product of its digits is 96768000, while the sum is 62.

The spelling of 745568358641 in words is "seven hundred forty-five billion, five hundred sixty-eight million, three hundred fifty-eight thousand, six hundred forty-one".