86018851679 has 4 divisors (see below), whose sum is σ = 89758801776. Its totient is φ = 82278901584.

The previous prime is 86018851669. The next prime is 86018851697. The reversal of 86018851679 is 97615881068.

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

It is a cyclic number.

It is not a de Polignac number, because 86018851679 - 2⁴ = 86018851663 is a prime.

It is a super-2 number, since 2×86018851679² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86018851669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1869975014 + ... + 1869975059.

It is an arithmetic number, because the mean of its divisors is an integer number (22439700444).

Almost surely, 2^86018851679 is an apocalyptic number.

86018851679 is a deficient number, since it is larger than the sum of its proper divisors (3739950097).

86018851679 is a wasteful number, since it uses less digits than its factorization.

86018851679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739950096.

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 86018851679 in words is "eighty-six billion, eighteen million, eight hundred fifty-one thousand, six hundred seventy-nine".