745046366502645 has 12 divisors (see below), whose sum is σ = 1291413701937996. Its totient is φ = 397358062134720.

The previous prime is 745046366502631. The next prime is 745046366502667. The reversal of 745046366502645 is 546205663640547.

It is a happy number.

745046366502645 is a `hidden beast` number, since 7 + 4 + 5 + 0 + 4 + 6 + 3 + 66 + 502 + 64 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 90405068552964 + 654641297949681 = 9508158^2 + 25585959^2 .

It is not a de Polignac number, because 745046366502645 - 2¹⁰ = 745046366501621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8278292961096 + ... + 8278292961185.

It is an arithmetic number, because the mean of its divisors is an integer number (107617808494833).

Almost surely, 2^{745046366502645} is an apocalyptic number.

It is an amenable number.

745046366502645 is a deficient number, since it is larger than the sum of its proper divisors (546367335435351).

745046366502645 is a wasteful number, since it uses less digits than its factorization.

745046366502645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16556585922292 (or 16556585922289 counting only the distinct ones).

The product of its (nonzero) digits is 435456000, while the sum is 63.

The spelling of 745046366502645 in words is "seven hundred forty-five trillion, forty-six billion, three hundred sixty-six million, five hundred two thousand, six hundred forty-five".