86280885491 has 2 divisors, whose sum is σ = 86280885492. Its totient is φ = 86280885490.

The previous prime is 86280885433. The next prime is 86280885497. The reversal of 86280885491 is 19458808268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86280885491 - 2²² = 86276691187 is a prime.

It is a super-2 number, since 2×86280885491² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86280885491.

It is not a weakly prime, because it can be changed into another prime (86280885497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43140442745 + 43140442746.

It is an arithmetic number, because the mean of its divisors is an integer number (43140442746).

Almost surely, 2^86280885491 is an apocalyptic number.

86280885491 is a deficient number, since it is larger than the sum of its proper divisors (1).

86280885491 is an equidigital number, since it uses as much as digits as its factorization.

86280885491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8847360, while the sum is 59.

The spelling of 86280885491 in words is "eighty-six billion, two hundred eighty million, eight hundred eighty-five thousand, four hundred ninety-one".