85254249312 has 72 divisors (see below), whose sum is σ = 243781377840. Its totient is φ = 28261059840.

The previous prime is 85254249299. The next prime is 85254249389. The reversal of 85254249312 is 21394245258.

85254249312 is a `hidden beast` number, since 8 + 5 + 2 + 542 + 4 + 93 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765612 + ... + 869867.

It is an arithmetic number, because the mean of its divisors is an integer number (3385852470).

Almost surely, 2^85254249312 is an apocalyptic number.

It is an amenable number.

85254249312 is an abundant number, since it is smaller than the sum of its proper divisors (158527128528).

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

85254249312 is a wasteful number, since it uses less digits than its factorization.

85254249312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635676 (or 1635665 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 85254249312 in words is "eighty-five billion, two hundred fifty-four million, two hundred forty-nine thousand, three hundred twelve".