85836726463720 has 128 divisors (see below), whose sum is σ = 199623988961280. Its totient is φ = 33183596160000.

The previous prime is 85836726463687. The next prime is 85836726463723. The reversal of 85836726463720 is 2736462763858.

It is a super-2 number, since 2×85836726463720² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85836726463723) 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, 5078787270 + ... + 5078804170.

It is an arithmetic number, because the mean of its divisors is an integer number (1559562413760).

Almost surely, 2^{85836726463720} 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 85836726463720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99811994480640).

85836726463720 is an abundant number, since it is smaller than the sum of its proper divisors (113787262497560).

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

85836726463720 is a wasteful number, since it uses less digits than its factorization.

85836726463720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22067 (or 22063 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 67.

The spelling of 85836726463720 in words is "eighty-five trillion, eight hundred thirty-six billion, seven hundred twenty-six million, four hundred sixty-three thousand, seven hundred twenty".