85278258258 has 16 divisors (see below), whose sum is σ = 179533175520. Its totient is φ = 26929976256.

The previous prime is 85278258203. The next prime is 85278258281. The reversal of 85278258258 is 85285287258.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374027335 + ... + 374027562.

It is an arithmetic number, because the mean of its divisors is an integer number (11220823470).

Almost surely, 2^85278258258 is an apocalyptic number.

85278258258 is an abundant number, since it is smaller than the sum of its proper divisors (94254917262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85278258258 is a wasteful number, since it uses less digits than its factorization.

85278258258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748054921.

The product of its digits is 28672000, while the sum is 60.

The spelling of 85278258258 in words is "eighty-five billion, two hundred seventy-eight million, two hundred fifty-eight thousand, two hundred fifty-eight".