67779558359 has 2 divisors, whose sum is σ = 67779558360. Its totient is φ = 67779558358.

The previous prime is 67779558317. The next prime is 67779558367. The reversal of 67779558359 is 95385597776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67779558359 - 2³² = 63484591063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67779558292 and 67779558301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67779558559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33889779179 + 33889779180.

It is an arithmetic number, because the mean of its divisors is an integer number (33889779180).

Almost surely, 2^67779558359 is an apocalyptic number.

67779558359 is a deficient number, since it is larger than the sum of its proper divisors (1).

67779558359 is an equidigital number, since it uses as much as digits as its factorization.

67779558359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 500094000, while the sum is 71.

The spelling of 67779558359 in words is "sixty-seven billion, seven hundred seventy-nine million, five hundred fifty-eight thousand, three hundred fifty-nine".