85719650970 has 128 divisors (see below), whose sum is σ = 219449917440. Its totient is φ = 21354439680.

The previous prime is 85719650969. The next prime is 85719650983. The reversal of 85719650970 is 7905691758.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85719650970.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51544359 + ... + 51546021.

It is an arithmetic number, because the mean of its divisors is an integer number (1714452480).

Almost surely, 2^85719650970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85719650970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109724958720).

85719650970 is an abundant number, since it is smaller than the sum of its proper divisors (133730266470).

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

85719650970 is a wasteful number, since it uses less digits than its factorization.

85719650970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 4762800, while the sum is 57.

The spelling of 85719650970 in words is "eighty-five billion, seven hundred nineteen million, six hundred fifty thousand, nine hundred seventy".