65717829923 has 2 divisors, whose sum is σ = 65717829924. Its totient is φ = 65717829922.

The previous prime is 65717829901. The next prime is 65717829929. The reversal of 65717829923 is 32992871756.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65717829923 is a prime.

It is not a weakly prime, because it can be changed into another prime (65717829929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32858914961 + 32858914962.

It is an arithmetic number, because the mean of its divisors is an integer number (32858914962).

Almost surely, 2^65717829923 is an apocalyptic number.

65717829923 is a deficient number, since it is larger than the sum of its proper divisors (1).

65717829923 is an equidigital number, since it uses as much as digits as its factorization.

65717829923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 59.

The spelling of 65717829923 in words is "sixty-five billion, seven hundred seventeen million, eight hundred twenty-nine thousand, nine hundred twenty-three".