611116879 has 2 divisors, whose sum is σ = 611116880. Its totient is φ = 611116878.

The previous prime is 611116843. The next prime is 611116907. The reversal of 611116879 is 978611116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611116879 - 2⁹ = 611116367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611116579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305558439 + 305558440.

It is an arithmetic number, because the mean of its divisors is an integer number (305558440).

Almost surely, 2^611116879 is an apocalyptic number.

611116879 is a deficient number, since it is larger than the sum of its proper divisors (1).

611116879 is an equidigital number, since it uses as much as digits as its factorization.

611116879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 40.

The square root of 611116879 is about 24720.7782846738. The cubic root of 611116879 is about 848.6098980894.

The spelling of 611116879 in words is "six hundred eleven million, one hundred sixteen thousand, eight hundred seventy-nine".