2127731826688 has 84 divisors (see below), whose sum is σ = 4607709018498. Its totient is φ = 982029434880.

The previous prime is 2127731826677. The next prime is 2127731826691. The reversal of 2127731826688 is 8866281377212.

It can be written as a sum of positive squares in 3 ways, for example, as 1131823632384 + 995908194304 = 1063872^2 + 997952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616008 + ... + 2152888.

Almost surely, 2^{2127731826688} 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 2127731826688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2303854509249).

2127731826688 is an abundant number, since it is smaller than the sum of its proper divisors (2479977191810).

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

2127731826688 is an equidigital number, since it uses as much as digits as its factorization.

2127731826688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536933 (or 1536896 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 61.

The spelling of 2127731826688 in words is "two trillion, one hundred twenty-seven billion, seven hundred thirty-one million, eight hundred twenty-six thousand, six hundred eighty-eight".