65940718427 has 2 divisors, whose sum is σ = 65940718428. Its totient is φ = 65940718426.

The previous prime is 65940718391. The next prime is 65940718429. The reversal of 65940718427 is 72481704956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65940718427 - 2¹² = 65940714331 is a prime.

Together with 65940718429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65940718429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32970359213 + 32970359214.

It is an arithmetic number, because the mean of its divisors is an integer number (32970359214).

Almost surely, 2^65940718427 is an apocalyptic number.

65940718427 is a deficient number, since it is larger than the sum of its proper divisors (1).

65940718427 is an equidigital number, since it uses as much as digits as its factorization.

65940718427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 65940718427 in words is "sixty-five billion, nine hundred forty million, seven hundred eighteen thousand, four hundred twenty-seven".