1964712611 has 2 divisors, whose sum is σ = 1964712612. Its totient is φ = 1964712610.

The previous prime is 1964712569. The next prime is 1964712641. The reversal of 1964712611 is 1162174691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1964712611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1964712641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982356305 + 982356306.

It is an arithmetic number, because the mean of its divisors is an integer number (982356306).

Almost surely, 2^1964712611 is an apocalyptic number.

1964712611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964712611 is an equidigital number, since it uses as much as digits as its factorization.

1964712611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 1964712611 is about 44325.0788042165. The cubic root of 1964712611 is about 1252.4671510091.

The spelling of 1964712611 in words is "one billion, nine hundred sixty-four million, seven hundred twelve thousand, six hundred eleven".