2978989869263 has 2 divisors, whose sum is σ = 2978989869264. Its totient is φ = 2978989869262.

The previous prime is 2978989869209. The next prime is 2978989869277. The reversal of 2978989869263 is 3629689898792.

2978989869263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2978989869263 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2978989889263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489494934631 + 1489494934632.

It is an arithmetic number, because the mean of its divisors is an integer number (1489494934632).

Almost surely, 2^{2978989869263} is an apocalyptic number.

2978989869263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978989869263 is an equidigital number, since it uses as much as digits as its factorization.

2978989869263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10158317568, while the sum is 86.

The spelling of 2978989869263 in words is "two trillion, nine hundred seventy-eight billion, nine hundred eighty-nine million, eight hundred sixty-nine thousand, two hundred sixty-three".