7985613268188 has 18 divisors (see below), whose sum is σ = 20185855761344. Its totient is φ = 2661871089384.

The previous prime is 7985613268183. The next prime is 7985613268319. The reversal of 7985613268188 is 8818623165897.

7985613268188 is a `hidden beast` number, since 7 + 98 + 5 + 61 + 326 + 81 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7985613268183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110911295356 + ... + 110911295427.

Almost surely, 2^{7985613268188} is an apocalyptic number.

It is an amenable number.

7985613268188 is an abundant number, since it is smaller than the sum of its proper divisors (12200242493156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7985613268188 is a wasteful number, since it uses less digits than its factorization.

7985613268188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221822590793 (or 221822590788 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The spelling of 7985613268188 in words is "seven trillion, nine hundred eighty-five billion, six hundred thirteen million, two hundred sixty-eight thousand, one hundred eighty-eight".