745477768018 has 8 divisors (see below), whose sum is σ = 1119670772220. Its totient is φ = 372254177280.

The previous prime is 745477767959. The next prime is 745477768039. The reversal of 745477768018 is 810867774547.

It can be written as a sum of positive squares in 2 ways, for example, as 655949348649 + 89528419369 = 809907^2 + 299213^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242351443 + ... + 242354518.

Almost surely, 2^745477768018 is an apocalyptic number.

745477768018 is a deficient number, since it is larger than the sum of its proper divisors (374193004202).

745477768018 is a wasteful number, since it uses less digits than its factorization.

745477768018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484706732.

The product of its (nonzero) digits is 73758720, while the sum is 64.

The spelling of 745477768018 in words is "seven hundred forty-five billion, four hundred seventy-seven million, seven hundred sixty-eight thousand, eighteen".