86494809999 has 64 divisors (see below), whose sum is σ = 136639319040. Its totient is φ = 48155627520.

The previous prime is 86494809959. The next prime is 86494810009. The reversal of 86494809999 is 99990849468.

It is a Cunningham number, because it is equal to 294100²-1.

It is not a de Polignac number, because 86494809999 - 2⁹ = 86494809487 is a prime.

It is a super-2 number, since 2×86494809999² (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 86494809999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86494809959) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11466169 + ... + 11473709.

It is an arithmetic number, because the mean of its divisors is an integer number (2134989360).

Almost surely, 2^86494809999 is an apocalyptic number.

86494809999 is a deficient number, since it is larger than the sum of its proper divisors (50144509041).

86494809999 is a wasteful number, since it uses less digits than its factorization.

86494809999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272.

The product of its (nonzero) digits is 362797056, while the sum is 75.

The spelling of 86494809999 in words is "eighty-six billion, four hundred ninety-four million, eight hundred nine thousand, nine hundred ninety-nine".