2419778887 has 2 divisors, whose sum is σ = 2419778888. Its totient is φ = 2419778886.

The previous prime is 2419778863. The next prime is 2419778891. The reversal of 2419778887 is 7888779142.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2419778887 - 2¹⁹ = 2419254599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2419778807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1209889443 + 1209889444.

It is an arithmetic number, because the mean of its divisors is an integer number (1209889444).

Almost surely, 2^2419778887 is an apocalyptic number.

2419778887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2419778887 is an equidigital number, since it uses as much as digits as its factorization.

2419778887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12644352, while the sum is 61.

The square root of 2419778887 is about 49191.2480732091. The cubic root of 2419778887 is about 1342.5337977659.

The spelling of 2419778887 in words is "two billion, four hundred nineteen million, seven hundred seventy-eight thousand, eight hundred eighty-seven".