745785249739 has 2 divisors, whose sum is σ = 745785249740. Its totient is φ = 745785249738.

The previous prime is 745785249733. The next prime is 745785249749. The reversal of 745785249739 is 937942587547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745785249739 - 2⁷ = 745785249611 is a prime.

It is not a weakly prime, because it can be changed into another prime (745785249733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372892624869 + 372892624870.

It is an arithmetic number, because the mean of its divisors is an integer number (372892624870).

Almost surely, 2^745785249739 is an apocalyptic number.

745785249739 is a deficient number, since it is larger than the sum of its proper divisors (1).

745785249739 is an equidigital number, since it uses as much as digits as its factorization.

745785249739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 533433600, while the sum is 70.

The spelling of 745785249739 in words is "seven hundred forty-five billion, seven hundred eighty-five million, two hundred forty-nine thousand, seven hundred thirty-nine".