67969197589 has 2 divisors, whose sum is σ = 67969197590. Its totient is φ = 67969197588.

The previous prime is 67969197563. The next prime is 67969197631. The reversal of 67969197589 is 98579196976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58513191025 + 9456006564 = 241895^2 + 97242^2 .

It is a cyclic number.

It is not a de Polignac number, because 67969197589 - 2⁹ = 67969197077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67969197509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33984598794 + 33984598795.

It is an arithmetic number, because the mean of its divisors is an integer number (33984598795).

Almost surely, 2^67969197589 is an apocalyptic number.

It is an amenable number.

67969197589 is a deficient number, since it is larger than the sum of its proper divisors (1).

67969197589 is an equidigital number, since it uses as much as digits as its factorization.

67969197589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 462944160, while the sum is 76.

The spelling of 67969197589 in words is "sixty-seven billion, nine hundred sixty-nine million, one hundred ninety-seven thousand, five hundred eighty-nine".