2121886727 has 2 divisors, whose sum is σ = 2121886728. Its totient is φ = 2121886726.

The previous prime is 2121886721. The next prime is 2121886763. The reversal of 2121886727 is 7276881212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121886727 - 2²⁴ = 2105109511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121886721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060943363 + 1060943364.

It is an arithmetic number, because the mean of its divisors is an integer number (1060943364).

Almost surely, 2^2121886727 is an apocalyptic number.

2121886727 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121886727 is an equidigital number, since it uses as much as digits as its factorization.

2121886727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 44.

The square root of 2121886727 is about 46063.9417223494. The cubic root of 2121886727 is about 1285.0126373620.

The spelling of 2121886727 in words is "two billion, one hundred twenty-one million, eight hundred eighty-six thousand, seven hundred twenty-seven".