86018851678 has 4 divisors (see below), whose sum is σ = 129028277520. Its totient is φ = 43009425838.

The previous prime is 86018851669. The next prime is 86018851697. The reversal of 86018851678 is 87615881068.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21504712918 + ... + 21504712921.

It is an arithmetic number, because the mean of its divisors is an integer number (32257069380).

Almost surely, 2^86018851678 is an apocalyptic number.

86018851678 is a deficient number, since it is larger than the sum of its proper divisors (43009425842).

86018851678 is a wasteful number, since it uses less digits than its factorization.

86018851678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43009425841.

The product of its (nonzero) digits is 5160960, while the sum is 58.

The spelling of 86018851678 in words is "eighty-six billion, eighteen million, eight hundred fifty-one thousand, six hundred seventy-eight".