2278207963 has 2 divisors, whose sum is σ = 2278207964. Its totient is φ = 2278207962.

The previous prime is 2278207933. The next prime is 2278207973. The reversal of 2278207963 is 3697028722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2278207963 - 2¹³ = 2278199771 is a prime.

It is not a weakly prime, because it can be changed into another prime (2278207903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139103981 + 1139103982.

It is an arithmetic number, because the mean of its divisors is an integer number (1139103982).

Almost surely, 2^2278207963 is an apocalyptic number.

2278207963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278207963 is an equidigital number, since it uses as much as digits as its factorization.

2278207963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 2278207963 is about 47730.5768140298. The cubic root of 2278207963 is about 1315.8239546955.

The spelling of 2278207963 in words is "two billion, two hundred seventy-eight million, two hundred seven thousand, nine hundred sixty-three".