85456818857 has 8 divisors (see below), whose sum is σ = 86666801472. Its totient is φ = 84247013200.

The previous prime is 85456818829. The next prime is 85456818929. The reversal of 85456818857 is 75881865458.

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

It is a cyclic number.

It is not a de Polignac number, because 85456818857 - 2¹² = 85456814761 is a prime.

It is a super-2 number, since 2×85456818857² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85456818793 and 85456818802.

It is not an unprimeable number, because it can be changed into a prime (85456818827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157783 + ... + 1229379.

It is an arithmetic number, because the mean of its divisors is an integer number (10833350184).

Almost surely, 2^85456818857 is an apocalyptic number.

It is an amenable number.

85456818857 is a deficient number, since it is larger than the sum of its proper divisors (1209982615).

85456818857 is a wasteful number, since it uses less digits than its factorization.

85456818857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88479.

The product of its digits is 86016000, while the sum is 65.

The spelling of 85456818857 in words is "eighty-five billion, four hundred fifty-six million, eight hundred eighteen thousand, eight hundred fifty-seven".