85812726493 has 8 divisors (see below), whose sum is σ = 93527124768. Its totient is φ = 78257388144.

The previous prime is 85812726421. The next prime is 85812726499. The reversal of 85812726493 is 39462721858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-85812726493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85812726499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39763855 + ... + 39766012.

It is an arithmetic number, because the mean of its divisors is an integer number (11690890596).

Almost surely, 2^85812726493 is an apocalyptic number.

85812726493 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

85812726493 is a deficient number, since it is larger than the sum of its proper divisors (7714398275).

85812726493 is a wasteful number, since it uses less digits than its factorization.

85812726493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79529963.

The product of its digits is 5806080, while the sum is 55.

The spelling of 85812726493 in words is "eighty-five billion, eight hundred twelve million, seven hundred twenty-six thousand, four hundred ninety-three".