47878201663 has 2 divisors, whose sum is σ = 47878201664. Its totient is φ = 47878201662.

The previous prime is 47878201621. The next prime is 47878201681. The reversal of 47878201663 is 36610287874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47878201663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47878201663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47878201363) 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, 23939100831 + 23939100832.

It is an arithmetic number, because the mean of its divisors is an integer number (23939100832).

Almost surely, 2^47878201663 is an apocalyptic number.

47878201663 is a deficient number, since it is larger than the sum of its proper divisors (1).

47878201663 is an equidigital number, since it uses as much as digits as its factorization.

47878201663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 47878201663 in words is "forty-seven billion, eight hundred seventy-eight million, two hundred one thousand, six hundred sixty-three".