85597318950 has 384 divisors, whose sum is σ = 264583065600. Its totient is φ = 18004032000.

The previous prime is 85597318943. The next prime is 85597319011. The reversal of 85597318950 is 5981379558.

It is a super-2 number, since 2×85597318950² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 56648695 + ... + 56650205.

It is an arithmetic number, because the mean of its divisors is an integer number (689018400).

Almost surely, 2^85597318950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85597318950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132291532800).

85597318950 is an abundant number, since it is smaller than the sum of its proper divisors (178985746650).

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

85597318950 is a wasteful number, since it uses less digits than its factorization.

85597318950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708 (or 1703 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 60.

The spelling of 85597318950 in words is "eighty-five billion, five hundred ninety-seven million, three hundred eighteen thousand, nine hundred fifty".