85357749936 has 80 divisors (see below), whose sum is σ = 229334885120. Its totient is φ = 27335266560.

The previous prime is 85357749929. The next prime is 85357749941. The reversal of 85357749936 is 63994775358.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213076 + ... + 464883.

It is an arithmetic number, because the mean of its divisors is an integer number (2866686064).

Almost surely, 2^85357749936 is an apocalyptic number.

85357749936 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

85357749936 is an abundant number, since it is smaller than the sum of its proper divisors (143977135184).

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

85357749936 is a wasteful number, since it uses less digits than its factorization.

85357749936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678074 (or 678068 counting only the distinct ones).

The product of its digits is 171460800, while the sum is 66.

The spelling of 85357749936 in words is "eighty-five billion, three hundred fifty-seven million, seven hundred forty-nine thousand, nine hundred thirty-six".