85857294961 has 8 divisors (see below), whose sum is σ = 86339468160. Its totient is φ = 85376471568.

The previous prime is 85857294937. The next prime is 85857294967. The reversal of 85857294961 is 16949275858.

It is a happy number.

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 85857294961 - 2¹⁹ = 85856770673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85857294893 and 85857294902.

It is not an unprimeable number, because it can be changed into a prime (85857294967) 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, 209746 + ... + 464443.

It is an arithmetic number, because the mean of its divisors is an integer number (10792433520).

Almost surely, 2^85857294961 is an apocalyptic number.

It is an amenable number.

85857294961 is a deficient number, since it is larger than the sum of its proper divisors (482173199).

85857294961 is a wasteful number, since it uses less digits than its factorization.

85857294961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674903.

The product of its digits is 43545600, while the sum is 64.

The spelling of 85857294961 in words is "eighty-five billion, eight hundred fifty-seven million, two hundred ninety-four thousand, nine hundred sixty-one".