745683658729 has 2 divisors, whose sum is σ = 745683658730. Its totient is φ = 745683658728.

The previous prime is 745683658691. The next prime is 745683658813. The reversal of 745683658729 is 927856386547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393354752400 + 352328906329 = 627180^2 + 593573^2 .

It is a cyclic number.

It is not a de Polignac number, because 745683658729 - 2²¹ = 745681561577 is a prime.

It is not a weakly prime, because it can be changed into another prime (745683658529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372841829364 + 372841829365.

It is an arithmetic number, because the mean of its divisors is an integer number (372841829365).

Almost surely, 2^745683658729 is an apocalyptic number.

It is an amenable number.

745683658729 is a deficient number, since it is larger than the sum of its proper divisors (1).

745683658729 is an equidigital number, since it uses as much as digits as its factorization.

745683658729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 609638400, while the sum is 70.

The spelling of 745683658729 in words is "seven hundred forty-five billion, six hundred eighty-three million, six hundred fifty-eight thousand, seven hundred twenty-nine".