85854888605 has 16 divisors (see below), whose sum is σ = 109133950320. Its totient is φ = 64615391232.

The previous prime is 85854888601. The next prime is 85854888607. The reversal of 85854888605 is 50688845858.

It can be written as a sum of positive squares in 8 ways, for example, as 434889316 + 85419999289 = 20854^2 + 292267^2 .

It is a cyclic number.

It is not a de Polignac number, because 85854888605 - 2² = 85854888601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85854888601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24620 + ... + 415109.

It is an arithmetic number, because the mean of its divisors is an integer number (6820871895).

Almost surely, 2^85854888605 is an apocalyptic number.

85854888605 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85854888605 is a deficient number, since it is larger than the sum of its proper divisors (23279061715).

85854888605 is a wasteful number, since it uses less digits than its factorization.

85854888605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442048.

The product of its (nonzero) digits is 98304000, while the sum is 65.

The spelling of 85854888605 in words is "eighty-five billion, eight hundred fifty-four million, eight hundred eighty-eight thousand, six hundred five".