7986072713985 has 24 divisors (see below), whose sum is σ = 14103705778344. Its totient is φ = 4178875783680.

The previous prime is 7986072713953. The next prime is 7986072714007. The reversal of 7986072713985 is 5893172706897.

7986072713985 is a `hidden beast` number, since 7 + 9 + 8 + 607 + 2 + 7 + 1 + 3 + 9 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 953271038736 + 7032801675249 = 976356^2 + 2651943^2 .

It is not a de Polignac number, because 7986072713985 - 2⁵ = 7986072713953 is a prime.

It is a super-2 number, since 2×7986072713985² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1674226696 + ... + 1674231465.

It is an arithmetic number, because the mean of its divisors is an integer number (587654407431).

Almost surely, 2^{7986072713985} is an apocalyptic number.

It is an amenable number.

7986072713985 is a deficient number, since it is larger than the sum of its proper divisors (6117633064359).

7986072713985 is a wasteful number, since it uses less digits than its factorization.

7986072713985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348458225 (or 3348458222 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 72.

The spelling of 7986072713985 in words is "seven trillion, nine hundred eighty-six billion, seventy-two million, seven hundred thirteen thousand, nine hundred eighty-five".