2116527729 has 4 divisors (see below), whose sum is σ = 2822036976. Its totient is φ = 1411018484.

The previous prime is 2116527671. The next prime is 2116527733. The reversal of 2116527729 is 9277256112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2116527729 - 2²⁸ = 1848092273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2116527799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352754619 + ... + 352754624.

It is an arithmetic number, because the mean of its divisors is an integer number (705509244).

Almost surely, 2^2116527729 is an apocalyptic number.

It is an amenable number.

2116527729 is a deficient number, since it is larger than the sum of its proper divisors (705509247).

2116527729 is an equidigital number, since it uses as much as digits as its factorization.

2116527729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705509246.

The product of its digits is 105840, while the sum is 42.

The square root of 2116527729 is about 46005.7358271770. The cubic root of 2116527729 is about 1283.9299239470.

The spelling of 2116527729 in words is "two billion, one hundred sixteen million, five hundred twenty-seven thousand, seven hundred twenty-nine".