67824993091 has 2 divisors, whose sum is σ = 67824993092. Its totient is φ = 67824993090.

The previous prime is 67824993083. The next prime is 67824993097. The reversal of 67824993091 is 19039942876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67824993091 - 2³ = 67824993083 is a prime.

It is not a weakly prime, because it can be changed into another prime (67824993097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33912496545 + 33912496546.

It is an arithmetic number, because the mean of its divisors is an integer number (33912496546).

Almost surely, 2^67824993091 is an apocalyptic number.

67824993091 is a deficient number, since it is larger than the sum of its proper divisors (1).

67824993091 is an equidigital number, since it uses as much as digits as its factorization.

67824993091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 67824993091 in words is "sixty-seven billion, eight hundred twenty-four million, nine hundred ninety-three thousand, ninety-one".