779636982745 has 32 divisors (see below), whose sum is σ = 996768732960. Its totient is φ = 583368376320.

The previous prime is 779636982739. The next prime is 779636982749. The reversal of 779636982745 is 547289636977.

It can be written as a sum of positive squares in 16 ways, for example, as 324526187584 + 455110795161 = 569672^2 + 674619^2 .

It is not a de Polignac number, because 779636982745 - 2⁹ = 779636982233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (779636982749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22891249 + ... + 22925281.

It is an arithmetic number, because the mean of its divisors is an integer number (31149022905).

Almost surely, 2^779636982745 is an apocalyptic number.

It is an amenable number.

779636982745 is a deficient number, since it is larger than the sum of its proper divisors (217131750215).

779636982745 is a wasteful number, since it uses less digits than its factorization.

779636982745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35725.

The product of its digits is 960180480, while the sum is 73.

The spelling of 779636982745 in words is "seven hundred seventy-nine billion, six hundred thirty-six million, nine hundred eighty-two thousand, seven hundred forty-five".