85207286123 has 4 divisors (see below), whose sum is σ = 87955908288. Its totient is φ = 82458663960.

The previous prime is 85207286119. The next prime is 85207286137. The reversal of 85207286123 is 32168270258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85207286123 - 2² = 85207286119 is a prime.

It is a super-2 number, since 2×85207286123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85207286173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374311036 + ... + 1374311097.

It is an arithmetic number, because the mean of its divisors is an integer number (21988977072).

Almost surely, 2^85207286123 is an apocalyptic number.

85207286123 is a deficient number, since it is larger than the sum of its proper divisors (2748622165).

85207286123 is a wasteful number, since it uses less digits than its factorization.

85207286123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748622164.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 85207286123 in words is "eighty-five billion, two hundred seven million, two hundred eighty-six thousand, one hundred twenty-three".