86802681491 has 4 divisors (see below), whose sum is σ = 87257145984. Its totient is φ = 86348217000.

The previous prime is 86802681481. The next prime is 86802681527. The reversal of 86802681491 is 19418620868.

It is a happy number.

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 86802681491 - 2¹⁴ = 86802665107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86802681431) 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, 227231960 + ... + 227232341.

It is an arithmetic number, because the mean of its divisors is an integer number (21814286496).

Almost surely, 2^86802681491 is an apocalyptic number.

86802681491 is a deficient number, since it is larger than the sum of its proper divisors (454464493).

86802681491 is a wasteful number, since it uses less digits than its factorization.

86802681491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454464492.

The product of its (nonzero) digits is 1327104, while the sum is 53.

The spelling of 86802681491 in words is "eighty-six billion, eight hundred two million, six hundred eighty-one thousand, four hundred ninety-one".