745863398618 has 8 divisors (see below), whose sum is σ = 1204856259348. Its totient is φ = 344244645504.

The previous prime is 745863398549. The next prime is 745863398629. The reversal of 745863398618 is 816893368547.

745863398618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 721373339569 + 24490059049 = 849337^2 + 156493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14343526871 + ... + 14343526922.

Almost surely, 2^745863398618 is an apocalyptic number.

745863398618 is a deficient number, since it is larger than the sum of its proper divisors (458992860730).

745863398618 is a wasteful number, since it uses less digits than its factorization.

745863398618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28687053808.

The product of its digits is 209018880, while the sum is 68.

The spelling of 745863398618 in words is "seven hundred forty-five billion, eight hundred sixty-three million, three hundred ninety-eight thousand, six hundred eighteen".