87691074213068 has 6 divisors (see below), whose sum is σ = 153459379872876. Its totient is φ = 43845537106532.

The previous prime is 87691074213031. The next prime is 87691074213073. The reversal of 87691074213068 is 86031247019678.

It is a self number, because there is not a number n which added to its sum of digits gives 87691074213068.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10961384276630 + ... + 10961384276637.

It is an arithmetic number, because the mean of its divisors is an integer number (25576563312146).

Almost surely, 2^{87691074213068} is an apocalyptic number.

It is an amenable number.

87691074213068 is a deficient number, since it is larger than the sum of its proper divisors (65768305659808).

87691074213068 is a wasteful number, since it uses less digits than its factorization.

87691074213068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21922768553271 (or 21922768553269 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 87691074213068 in words is "eighty-seven trillion, six hundred ninety-one billion, seventy-four million, two hundred thirteen thousand, sixty-eight".