85278899364 has 24 divisors (see below), whose sum is σ = 200175624768. Its totient is φ = 28256081760.

The previous prime is 85278899353. The next prime is 85278899369. The reversal of 85278899364 is 46399887258.

It is not an unprimeable number, because it can be changed into a prime (85278899369) 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, 21275167 + ... + 21279174.

It is an arithmetic number, because the mean of its divisors is an integer number (8340651032).

Almost surely, 2^85278899364 is an apocalyptic number.

It is an amenable number.

85278899364 is an abundant number, since it is smaller than the sum of its proper divisors (114896725404).

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

85278899364 is a wasteful number, since it uses less digits than its factorization.

85278899364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42554515 (or 42554513 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 69.

The spelling of 85278899364 in words is "eighty-five billion, two hundred seventy-eight million, eight hundred ninety-nine thousand, three hundred sixty-four".