85723939308 has 96 divisors (see below), whose sum is σ = 244354360320. Its totient is φ = 22856232960.

The previous prime is 85723939297. The next prime is 85723939309. The reversal of 85723939308 is 80393932758.

It is not an unprimeable number, because it can be changed into a prime (85723939309) 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, 461893 + ... + 620316.

It is an arithmetic number, because the mean of its divisors is an integer number (2545357920).

Almost surely, 2^85723939308 is an apocalyptic number.

It is an amenable number.

85723939308 is an abundant number, since it is smaller than the sum of its proper divisors (158630421012).

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

85723939308 is a wasteful number, since it uses less digits than its factorization.

85723939308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082287 (or 1082285 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 85723939308 in words is "eighty-five billion, seven hundred twenty-three million, nine hundred thirty-nine thousand, three hundred eight".