979787278795 has 16 divisors (see below), whose sum is σ = 1266368548032. Its totient is φ = 723431272320.

The previous prime is 979787278793. The next prime is 979787278817. The reversal of 979787278795 is 597872787979.

It is not a de Polignac number, because 979787278795 - 2¹ = 979787278793 is a prime.

It is a super-2 number, since 2×979787278795² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979787278793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625416 + ... + 1533205.

It is an arithmetic number, because the mean of its divisors is an integer number (79148034252).

Almost surely, 2^979787278795 is an apocalyptic number.

979787278795 is a deficient number, since it is larger than the sum of its proper divisors (286581269237).

979787278795 is a wasteful number, since it uses less digits than its factorization.

979787278795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165622.

The product of its digits is 7841473920, while the sum is 85.

The spelling of 979787278795 in words is "nine hundred seventy-nine billion, seven hundred eighty-seven million, two hundred seventy-eight thousand, seven hundred ninety-five".