2163249479 has 2 divisors, whose sum is σ = 2163249480. Its totient is φ = 2163249478.

The previous prime is 2163249457. The next prime is 2163249481. The reversal of 2163249479 is 9749423612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2163249479 - 2¹⁶ = 2163183943 is a prime.

Together with 2163249481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163249449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081624739 + 1081624740.

It is an arithmetic number, because the mean of its divisors is an integer number (1081624740).

Almost surely, 2^2163249479 is an apocalyptic number.

2163249479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163249479 is an equidigital number, since it uses as much as digits as its factorization.

2163249479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 2163249479 is about 46510.7458443745. The cubic root of 2163249479 is about 1293.3087105541.

The spelling of 2163249479 in words is "two billion, one hundred sixty-three million, two hundred forty-nine thousand, four hundred seventy-nine".