68194579 has 2 divisors, whose sum is σ = 68194580. Its totient is φ = 68194578.

The previous prime is 68194561. The next prime is 68194583. The reversal of 68194579 is 97549186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68194579 - 2¹³ = 68186387 is a prime.

It is not a weakly prime, because it can be changed into another prime (68194879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34097289 + 34097290.

It is an arithmetic number, because the mean of its divisors is an integer number (34097290).

Almost surely, 2^68194579 is an apocalyptic number.

68194579 is a deficient number, since it is larger than the sum of its proper divisors (1).

68194579 is an equidigital number, since it uses as much as digits as its factorization.

68194579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 68194579 is about 8258.0009082102. Note that the first 3 decimals coincide. The cubic root of 68194579 is about 408.5544553109.

The spelling of 68194579 in words is "sixty-eight million, one hundred ninety-four thousand, five hundred seventy-nine".