85811238882251 has 8 divisors (see below), whose sum is σ = 88775224402320. Its totient is φ = 82847585181088.

The previous prime is 85811238882179. The next prime is 85811238882319. The reversal of 85811238882251 is 15228883211858.

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 85811238882251 - 2²² = 85811234687947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85811238882151) 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, 82428521 + ... + 83463066.

It is an arithmetic number, because the mean of its divisors is an integer number (11096903050290).

Almost surely, 2^{85811238882251} is an apocalyptic number.

85811238882251 is a deficient number, since it is larger than the sum of its proper divisors (2963985520069).

85811238882251 is a wasteful number, since it uses less digits than its factorization.

85811238882251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165909453.

The product of its digits is 19660800, while the sum is 62.

The spelling of 85811238882251 in words is "eighty-five trillion, eight hundred eleven billion, two hundred thirty-eight million, eight hundred eighty-two thousand, two hundred fifty-one".