2646120047 has 2 divisors, whose sum is σ = 2646120048. Its totient is φ = 2646120046.

The previous prime is 2646119999. The next prime is 2646120073. The reversal of 2646120047 is 7400216462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2646120047 - 2²² = 2641925743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2646119995 and 2646120022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2646122047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323060023 + 1323060024.

It is an arithmetic number, because the mean of its divisors is an integer number (1323060024).

Almost surely, 2^2646120047 is an apocalyptic number.

2646120047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646120047 is an equidigital number, since it uses as much as digits as its factorization.

2646120047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2646120047 is about 51440.4514657482. The cubic root of 2646120047 is about 1383.1518044987.

The spelling of 2646120047 in words is "two billion, six hundred forty-six million, one hundred twenty thousand, forty-seven".