85497679458 has 12 divisors (see below), whose sum is σ = 185244972198. Its totient is φ = 28499226480.

The previous prime is 85497679457. The next prime is 85497679489.

85497679458 is a `hidden beast` number, since 8 + 549 + 7 + 6 + 79 + 4 + 5 + 8 = 666.

85497679458 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 49402619289 + 36095060169 = 222267^2 + 189987^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85497679457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2374935523 + ... + 2374935558.

Almost surely, 2^85497679458 is an apocalyptic number.

85497679458 is an abundant number, since it is smaller than the sum of its proper divisors (99747292740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85497679458 is a wasteful number, since it uses less digits than its factorization.

85497679458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749871089 (or 4749871086 counting only the distinct ones).

The product of its digits is 609638400, while the sum is 72.

The spelling of 85497679458 in words is "eighty-five billion, four hundred ninety-seven million, six hundred seventy-nine thousand, four hundred fifty-eight".