17790767879 has 2 divisors, whose sum is σ = 17790767880. Its totient is φ = 17790767878.

The previous prime is 17790767873. The next prime is 17790767887. The reversal of 17790767879 is 97876709771.

It is a weak prime.

It is an emirp because it is prime and its reverse (97876709771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17790767879 - 2⁸ = 17790767623 is a prime.

It is a super-2 number, since 2×17790767879² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17790767873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8895383939 + 8895383940.

It is an arithmetic number, because the mean of its divisors is an integer number (8895383940).

Almost surely, 2^17790767879 is an apocalyptic number.

17790767879 is a deficient number, since it is larger than the sum of its proper divisors (1).

17790767879 is an equidigital number, since it uses as much as digits as its factorization.

17790767879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65345616, while the sum is 68.

The spelling of 17790767879 in words is "seventeen billion, seven hundred ninety million, seven hundred sixty-seven thousand, eight hundred seventy-nine".