85310535772 has 96 divisors (see below), whose sum is σ = 191323883520. Its totient is φ = 32312286720.

The previous prime is 85310535769. The next prime is 85310535773. The reversal of 85310535772 is 27753501358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85310535773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18037504 + ... + 18042232.

It is an arithmetic number, because the mean of its divisors is an integer number (1992957120).

Almost surely, 2^85310535772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85310535772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95661941760).

85310535772 is an abundant number, since it is smaller than the sum of its proper divisors (106013347748).

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

85310535772 is a wasteful number, since it uses less digits than its factorization.

85310535772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6371 (or 6369 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 85310535772 in words is "eighty-five billion, three hundred ten million, five hundred thirty-five thousand, seven hundred seventy-two".