86834803491 has 20 divisors (see below), whose sum is σ = 129822922152. Its totient is φ = 57842235648.

The previous prime is 86834803487. The next prime is 86834803511. The reversal of 86834803491 is 19430843868.

86834803491 is a `hidden beast` number, since 86 + 83 + 480 + 3 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 86834803491 - 2² = 86834803487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86834803441) 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 19 ways as a sum of consecutive naturals, for example, 341865 + ... + 539018.

Almost surely, 2^86834803491 is an apocalyptic number.

86834803491 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

86834803491 is a deficient number, since it is larger than the sum of its proper divisors (42988118661).

86834803491 is a wasteful number, since it uses less digits than its factorization.

86834803491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882112 (or 882103 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 86834803491 in words is "eighty-six billion, eight hundred thirty-four million, eight hundred three thousand, four hundred ninety-one".