2192778463 has 2 divisors, whose sum is σ = 2192778464. Its totient is φ = 2192778462.

The previous prime is 2192778451. The next prime is 2192778481. The reversal of 2192778463 is 3648772912.

It is a happy number.

2192778463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2192778463 - 2²⁵ = 2159224031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2192778563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096389231 + 1096389232.

It is an arithmetic number, because the mean of its divisors is an integer number (1096389232).

Almost surely, 2^2192778463 is an apocalyptic number.

2192778463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2192778463 is an equidigital number, since it uses as much as digits as its factorization.

2192778463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 2192778463 is about 46827.1124777089. The cubic root of 2192778463 is about 1299.1668158214.

The spelling of 2192778463 in words is "two billion, one hundred ninety-two million, seven hundred seventy-eight thousand, four hundred sixty-three".