39193576006691 has 2 divisors, whose sum is σ = 39193576006692. Its totient is φ = 39193576006690.

The previous prime is 39193576006657. The next prime is 39193576006693. The reversal of 39193576006691 is 19660067539193.

39193576006691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39193576006691 is a prime.

It is a super-2 number, since 2×39193576006691² (a number of 28 digits) contains 22 as substring.

Together with 39193576006693, 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 (39193576006693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19596788003345 + 19596788003346.

It is an arithmetic number, because the mean of its divisors is an integer number (19596788003346).

Almost surely, 2^{39193576006691} is an apocalyptic number.

39193576006691 is a deficient number, since it is larger than the sum of its proper divisors (1).

39193576006691 is an equidigital number, since it uses as much as digits as its factorization.

39193576006691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49601160, while the sum is 65.

The spelling of 39193576006691 in words is "thirty-nine trillion, one hundred ninety-three billion, five hundred seventy-six million, six thousand, six hundred ninety-one".