745668853 has 2 divisors, whose sum is σ = 745668854. Its totient is φ = 745668852.

The previous prime is 745668821. The next prime is 745668857. The reversal of 745668853 is 358866547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608263569 + 137405284 = 24663^2 + 11722^2 .

It is a cyclic number.

It is not a de Polignac number, because 745668853 - 2⁵ = 745668821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 745668853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745668857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372834426 + 372834427.

It is an arithmetic number, because the mean of its divisors is an integer number (372834427).

Almost surely, 2^745668853 is an apocalyptic number.

It is an amenable number.

745668853 is a deficient number, since it is larger than the sum of its proper divisors (1).

745668853 is an equidigital number, since it uses as much as digits as its factorization.

745668853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 52.

The square root of 745668853 is about 27306.9378180711. The cubic root of 745668853 is about 906.8079819710.

The spelling of 745668853 in words is "seven hundred forty-five million, six hundred sixty-eight thousand, eight hundred fifty-three".