86219068643 has 4 divisors (see below), whose sum is σ = 88053516960. Its totient is φ = 84384620328.

The previous prime is 86219068631. The next prime is 86219068667. The reversal of 86219068643 is 34686091268.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86219068643 is a prime.

It is a super-2 number, since 2×86219068643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86219068613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917224088 + ... + 917224181.

It is an arithmetic number, because the mean of its divisors is an integer number (22013379240).

Almost surely, 2^86219068643 is an apocalyptic number.

86219068643 is a deficient number, since it is larger than the sum of its proper divisors (1834448317).

86219068643 is a wasteful number, since it uses less digits than its factorization.

86219068643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834448316.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 86219068643 in words is "eighty-six billion, two hundred nineteen million, sixty-eight thousand, six hundred forty-three".