2647832669947 has 2 divisors, whose sum is σ = 2647832669948. Its totient is φ = 2647832669946.

The previous prime is 2647832669863. The next prime is 2647832669959. The reversal of 2647832669947 is 7499662387462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2647832669947 - 2³⁹ = 2098076856059 is a prime.

It is a super-2 number, since 2×2647832669947² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2647832669947.

It is not a weakly prime, because it can be changed into another prime (2647832669347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323916334973 + 1323916334974.

It is an arithmetic number, because the mean of its divisors is an integer number (1323916334974).

Almost surely, 2^{2647832669947} is an apocalyptic number.

2647832669947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647832669947 is an equidigital number, since it uses as much as digits as its factorization.

2647832669947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1316818944, while the sum is 73.

The spelling of 2647832669947 in words is "two trillion, six hundred forty-seven billion, eight hundred thirty-two million, six hundred sixty-nine thousand, nine hundred forty-seven".