85309855400 has 96 divisors (see below), whose sum is σ = 247287833280. Its totient is φ = 26590080000.

The previous prime is 85309855399. The next prime is 85309855441. The reversal of 85309855400 is 455890358.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2754401 + ... + 2785200.

It is an arithmetic number, because the mean of its divisors is an integer number (2575914930).

Almost surely, 2^85309855400 is an apocalyptic number.

It is an amenable number.

85309855400 is an abundant number, since it is smaller than the sum of its proper divisors (161977977880).

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

85309855400 is a wasteful number, since it uses less digits than its factorization.

85309855400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539635 (or 5539626 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 85309855400 in words is "eighty-five billion, three hundred nine million, eight hundred fifty-five thousand, four hundred".