745372400017 has 18 divisors (see below), whose sum is σ = 883734423558. Its totient is φ = 626835972672.

The previous prime is 745372399999. The next prime is 745372400033. The reversal of 745372400017 is 710004273547.

It can be written as a sum of positive squares in 3 ways, for example, as 213521623056 + 531850776961 = 462084^2 + 729281^2 .

It is not a de Polignac number, because 745372400017 - 2¹⁵ = 745372367249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745372400077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2570028 + ... + 2845309.

Almost surely, 2^745372400017 is an apocalyptic number.

It is an amenable number.

745372400017 is a deficient number, since it is larger than the sum of its proper divisors (138362023541).

745372400017 is an equidigital number, since it uses as much as digits as its factorization.

745372400017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415457 (or 5415397 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 745372400017 in words is "seven hundred forty-five billion, three hundred seventy-two million, four hundred thousand, seventeen".