85718299860 has 144 divisors (see below), whose sum is σ = 266175262080. Its totient is φ = 22321555200.

The previous prime is 85718299817. The next prime is 85718299967. The reversal of 85718299860 is 6899281758.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1576894 + ... + 1630346.

It is an arithmetic number, because the mean of its divisors is an integer number (1848439320).

Almost surely, 2^85718299860 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 85718299860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133087631040).

85718299860 is an abundant number, since it is smaller than the sum of its proper divisors (180456962220).

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

85718299860 is a wasteful number, since it uses less digits than its factorization.

85718299860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53678 (or 53673 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 63.

The spelling of 85718299860 in words is "eighty-five billion, seven hundred eighteen million, two hundred ninety-nine thousand, eight hundred sixty".