66962426939 has 2 divisors, whose sum is σ = 66962426940. Its totient is φ = 66962426938.

The previous prime is 66962426917. The next prime is 66962426963. The reversal of 66962426939 is 93962426966.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66962426939 is a prime.

It is not a weakly prime, because it can be changed into another prime (66962476939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33481213469 + 33481213470.

It is an arithmetic number, because the mean of its divisors is an integer number (33481213470).

Almost surely, 2^66962426939 is an apocalyptic number.

66962426939 is a deficient number, since it is larger than the sum of its proper divisors (1).

66962426939 is an equidigital number, since it uses as much as digits as its factorization.

66962426939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45349632, while the sum is 62.

The spelling of 66962426939 in words is "sixty-six billion, nine hundred sixty-two million, four hundred twenty-six thousand, nine hundred thirty-nine".