745005760731 has 8 divisors (see below), whose sum is σ = 1103712238160. Its totient is φ = 496670507136.

The previous prime is 745005760687. The next prime is 745005760769. The reversal of 745005760731 is 137067500547.

745005760731 is a `hidden beast` number, since 7 + 4 + 5 + 0 + 0 + 5 + 7 + 607 + 31 = 666.

It is not a de Polignac number, because 745005760731 - 2¹⁷ = 745005629659 is a prime.

It is a super-2 number, since 2×745005760731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745005760231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13796402950 + ... + 13796403003.

It is an arithmetic number, because the mean of its divisors is an integer number (137964029770).

Almost surely, 2^745005760731 is an apocalyptic number.

745005760731 is a deficient number, since it is larger than the sum of its proper divisors (358706477429).

745005760731 is a wasteful number, since it uses less digits than its factorization.

745005760731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27592805962 (or 27592805956 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 745005760731 in words is "seven hundred forty-five billion, five million, seven hundred sixty thousand, seven hundred thirty-one".