86282990191 has 4 divisors (see below), whose sum is σ = 87910971192. Its totient is φ = 84655009192.

The previous prime is 86282990177. The next prime is 86282990201. The reversal of 86282990191 is 19109928268.

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 86282990191 - 2⁷ = 86282990063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86282990161) 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, 813990421 + ... + 813990526.

It is an arithmetic number, because the mean of its divisors is an integer number (21977742798).

Almost surely, 2^86282990191 is an apocalyptic number.

86282990191 is a deficient number, since it is larger than the sum of its proper divisors (1627981001).

86282990191 is a wasteful number, since it uses less digits than its factorization.

86282990191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627981000.

The product of its (nonzero) digits is 1119744, while the sum is 55.

The spelling of 86282990191 in words is "eighty-six billion, two hundred eighty-two million, nine hundred ninety thousand, one hundred ninety-one".