85440703085 has 32 divisors (see below), whose sum is σ = 105410574720. Its totient is φ = 66447360000.

The previous prime is 85440703081. The next prime is 85440703093. The reversal of 85440703085 is 58030704458.

It is not a de Polignac number, because 85440703085 - 2² = 85440703081 is a prime.

It is a super-2 number, since 2×85440703085² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85440703081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53366285 + ... + 53367885.

It is an arithmetic number, because the mean of its divisors is an integer number (3294080460).

Almost surely, 2^85440703085 is an apocalyptic number.

It is an amenable number.

85440703085 is a deficient number, since it is larger than the sum of its proper divisors (19969871635).

85440703085 is a wasteful number, since it uses less digits than its factorization.

85440703085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 85440703085 in words is "eighty-five billion, four hundred forty million, seven hundred three thousand, eighty-five".