6978479165 has 32 divisors (see below), whose sum is σ = 9963928320. Its totient is φ = 4592070144.

The previous prime is 6978479129. The next prime is 6978479191. The reversal of 6978479165 is 5619748796.

It is a cyclic number.

It is not a de Polignac number, because 6978479165 - 2⁸ = 6978478909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6978479098 and 6978479107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57626 + ... + 131444.

It is an arithmetic number, because the mean of its divisors is an integer number (311372760).

Almost surely, 2^6978479165 is an apocalyptic number.

It is an amenable number.

6978479165 is a deficient number, since it is larger than the sum of its proper divisors (2985449155).

6978479165 is a wasteful number, since it uses less digits than its factorization.

6978479165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73941.

The product of its digits is 22861440, while the sum is 62.

The square root of 6978479165 is about 83537.2920616894. The cubic root of 6978479165 is about 1910.9687952740.

The spelling of 6978479165 in words is "six billion, nine hundred seventy-eight million, four hundred seventy-nine thousand, one hundred sixty-five".