85723723650 has 48 divisors (see below), whose sum is σ = 214268857344. Its totient is φ = 22679657280.

The previous prime is 85723723633. The next prime is 85723723661. The reversal of 85723723650 is 5632732758.

It is a self number, because there is not a number n which added to its sum of digits gives 85723723650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2230917 + ... + 2269016.

It is an arithmetic number, because the mean of its divisors is an integer number (4463934528).

Almost surely, 2^85723723650 is an apocalyptic number.

85723723650 is an abundant number, since it is smaller than the sum of its proper divisors (128545133694).

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

85723723650 is a wasteful number, since it uses less digits than its factorization.

85723723650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500075 (or 4500070 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 85723723650 in words is "eighty-five billion, seven hundred twenty-three million, seven hundred twenty-three thousand, six hundred fifty".