7866686381002 has 32 divisors (see below), whose sum is σ = 12637736847360. Its totient is φ = 3659446602240.

The previous prime is 7866686380999. The next prime is 7866686381027. The reversal of 7866686381002 is 2001836866687.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11676477 + ... + 12331807.

It is an arithmetic number, because the mean of its divisors is an integer number (394929276480).

Almost surely, 2^{7866686381002} is an apocalyptic number.

7866686381002 is a deficient number, since it is larger than the sum of its proper divisors (4771050466358).

7866686381002 is a wasteful number, since it uses less digits than its factorization.

7866686381002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659406.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 7866686381002 in words is "seven trillion, eight hundred sixty-six billion, six hundred eighty-six million, three hundred eighty-one thousand, two".