745330443668 has 6 divisors (see below), whose sum is σ = 1304328276426. Its totient is φ = 372665221832.

The previous prime is 745330443659. The next prime is 745330443701. The reversal of 745330443668 is 866344033547.

It can be written as a sum of positive squares in only one way, i.e., 398529589264 + 346800854404 = 631292^2 + 588898^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93166305455 + ... + 93166305462.

It is an arithmetic number, because the mean of its divisors is an integer number (217388046071).

Almost surely, 2^745330443668 is an apocalyptic number.

It is an amenable number.

745330443668 is a deficient number, since it is larger than the sum of its proper divisors (558997832758).

745330443668 is a wasteful number, since it uses less digits than its factorization.

745330443668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186332610921 (or 186332610919 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 53.

The spelling of 745330443668 in words is "seven hundred forty-five billion, three hundred thirty million, four hundred forty-three thousand, six hundred sixty-eight".