2616878779 has 2 divisors, whose sum is σ = 2616878780. Its totient is φ = 2616878778.

The previous prime is 2616878753. The next prime is 2616878801. The reversal of 2616878779 is 9778786162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2616878779 - 2¹⁹ = 2616354491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2616878729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308439389 + 1308439390.

It is an arithmetic number, because the mean of its divisors is an integer number (1308439390).

Almost surely, 2^2616878779 is an apocalyptic number.

2616878779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2616878779 is an equidigital number, since it uses as much as digits as its factorization.

2616878779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14224896, while the sum is 61.

The square root of 2616878779 is about 51155.4374333755. The cubic root of 2616878779 is about 1378.0380260234.

The spelling of 2616878779 in words is "two billion, six hundred sixteen million, eight hundred seventy-eight thousand, seven hundred seventy-nine".