745705435691 has 2 divisors, whose sum is σ = 745705435692. Its totient is φ = 745705435690.

The previous prime is 745705435669. The next prime is 745705435703. The reversal of 745705435691 is 196534507547.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 745705435691 - 2³⁸ = 470827528747 is a prime.

It is not a weakly prime, because it can be changed into another prime (745705435621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372852717845 + 372852717846.

It is an arithmetic number, because the mean of its divisors is an integer number (372852717846).

Almost surely, 2^745705435691 is an apocalyptic number.

745705435691 is a deficient number, since it is larger than the sum of its proper divisors (1).

745705435691 is an equidigital number, since it uses as much as digits as its factorization.

745705435691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 745705435691 in words is "seven hundred forty-five billion, seven hundred five million, four hundred thirty-five thousand, six hundred ninety-one".