2116774739 has 2 divisors, whose sum is σ = 2116774740. Its totient is φ = 2116774738.

The previous prime is 2116774729. The next prime is 2116774763. The reversal of 2116774739 is 9374776112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116774739 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2116774693 and 2116774702.

It is not a weakly prime, because it can be changed into another prime (2116774729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058387369 + 1058387370.

It is an arithmetic number, because the mean of its divisors is an integer number (1058387370).

Almost surely, 2^2116774739 is an apocalyptic number.

2116774739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116774739 is an equidigital number, since it uses as much as digits as its factorization.

2116774739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 47.

The square root of 2116774739 is about 46008.4203054180. The cubic root of 2116774739 is about 1283.9798691457.

The spelling of 2116774739 in words is "two billion, one hundred sixteen million, seven hundred seventy-four thousand, seven hundred thirty-nine".