85428313512 has 32 divisors (see below), whose sum is σ = 213578726400. Its totient is φ = 28475045504.

The previous prime is 85428313507. The next prime is 85428313547. The reversal of 85428313512 is 21531382458.

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, 853273 + ... + 948119.

It is an arithmetic number, because the mean of its divisors is an integer number (6674335200).

Almost surely, 2^85428313512 is an apocalyptic number.

It is an amenable number.

85428313512 is an abundant number, since it is smaller than the sum of its proper divisors (128150412888).

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

85428313512 is a wasteful number, since it uses less digits than its factorization.

85428313512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132385 (or 132381 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The spelling of 85428313512 in words is "eighty-five billion, four hundred twenty-eight million, three hundred thirteen thousand, five hundred twelve".