2101801726000 has 160 divisors (see below), whose sum is σ = 5215651998336. Its totient is φ = 818904960000.

The previous prime is 2101801725943. The next prime is 2101801726009. The reversal of 2101801726000 is 6271081012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101801726000.

It is not an unprimeable number, because it can be changed into a prime (2101801726009) 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, 12482370 + ... + 12649630.

Almost surely, 2^{2101801726000} is an apocalyptic number.

2101801726000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101801726000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2607825999168).

2101801726000 is an abundant number, since it is smaller than the sum of its proper divisors (3113850272336).

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

2101801726000 is a wasteful number, since it uses less digits than its factorization.

2101801726000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167448 (or 167432 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 2101801726000 in words is "two trillion, one hundred one billion, eight hundred one million, seven hundred twenty-six thousand".