979678305369 has 45 divisors (see below), whose sum is σ = 1460458835979. Its totient is φ = 632830216320.

The previous prime is 979678305313. The next prime is 979678305371. The reversal of 979678305369 is 963503876979.

The square root of 979678305369 is 989787.

It is a perfect power (a square), and thus also a powerful number.

979678305369 is a `hidden beast` number, since 9 + 7 + 9 + 6 + 7 + 83 + 0 + 536 + 9 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 140915399769 + 838762905600 = 375387^2 + 915840^2 .

It is not a de Polignac number, because 979678305369 - 2¹¹ = 979678303321 is a prime.

It is a super-2 number, since 2×979678305369² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 979678305297 and 979678305306.

It is not an unprimeable number, because it can be changed into a prime (979678305869) by changing a digit.

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 44 ways as a sum of consecutive naturals, for example, 4065055089 + ... + 4065055329.

Almost surely, 2^979678305369 is an apocalyptic number.

979678305369 is the 989787-th square number.

979678305369 is the 494894-th centered octagonal number.

It is an amenable number.

979678305369 is a deficient number, since it is larger than the sum of its proper divisors (480780530610).

979678305369 is an frugal number, since it uses more digits than its factorization.

979678305369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 462944160, while the sum is 72.

The spelling of 979678305369 in words is "nine hundred seventy-nine billion, six hundred seventy-eight million, three hundred five thousand, three hundred sixty-nine".