47368661687 has 2 divisors, whose sum is σ = 47368661688. Its totient is φ = 47368661686.

The previous prime is 47368661677. The next prime is 47368661701. The reversal of 47368661687 is 78616686374.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47368661687 - 2¹⁰ = 47368660663 is a prime.

It is a super-2 number, since 2×47368661687² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47368661677) 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, 23684330843 + 23684330844.

It is an arithmetic number, because the mean of its divisors is an integer number (23684330844).

Almost surely, 2^47368661687 is an apocalyptic number.

47368661687 is a deficient number, since it is larger than the sum of its proper divisors (1).

47368661687 is an equidigital number, since it uses as much as digits as its factorization.

47368661687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 62.

The spelling of 47368661687 in words is "forty-seven billion, three hundred sixty-eight million, six hundred sixty-one thousand, six hundred eighty-seven".