65973498791 has 2 divisors, whose sum is σ = 65973498792. Its totient is φ = 65973498790.

The previous prime is 65973498739. The next prime is 65973498827. The reversal of 65973498791 is 19789437956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65973498791 - 2⁶ = 65973498727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65973498491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32986749395 + 32986749396.

It is an arithmetic number, because the mean of its divisors is an integer number (32986749396).

Almost surely, 2^65973498791 is an apocalyptic number.

65973498791 is a deficient number, since it is larger than the sum of its proper divisors (1).

65973498791 is an equidigital number, since it uses as much as digits as its factorization.

65973498791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102876480, while the sum is 68.

The spelling of 65973498791 in words is "sixty-five billion, nine hundred seventy-three million, four hundred ninety-eight thousand, seven hundred ninety-one".