86649944994668 has 144 divisors (see below), whose sum is σ = 178333662608640. Its totient is φ = 36433171958400.

The previous prime is 86649944994643. The next prime is 86649944994713.

86649944994668 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5575562978 + ... + 5575578518.

It is an arithmetic number, because the mean of its divisors is an integer number (1238428212560).

Almost surely, 2^{86649944994668} is an apocalyptic number.

It is an amenable number.

86649944994668 is an abundant number, since it is smaller than the sum of its proper divisors (91683717613972).

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

86649944994668 is a wasteful number, since it uses less digits than its factorization.

86649944994668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19268 (or 19223 counting only the distinct ones).

The product of its digits is 139314069504, while the sum is 92.

The spelling of 86649944994668 in words is "eighty-six trillion, six hundred forty-nine billion, nine hundred forty-four million, nine hundred ninety-four thousand, six hundred sixty-eight".