86438952866 has 32 divisors (see below), whose sum is σ = 155225514240. Its totient is φ = 35296690176.

The previous prime is 86438952839. The next prime is 86438952877. The reversal of 86438952866 is 66825983468.

It is a super-2 number, since 2×86438952866² (a number of 23 digits) contains 22 as substring.

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, 439511 + ... + 605018.

It is an arithmetic number, because the mean of its divisors is an integer number (4850797320).

Almost surely, 2^86438952866 is an apocalyptic number.

86438952866 is a deficient number, since it is larger than the sum of its proper divisors (68786561374).

86438952866 is a wasteful number, since it uses less digits than its factorization.

86438952866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044818.

The product of its digits is 119439360, while the sum is 65.

The spelling of 86438952866 in words is "eighty-six billion, four hundred thirty-eight million, nine hundred fifty-two thousand, eight hundred sixty-six".