47967978251 has 2 divisors, whose sum is σ = 47967978252. Its totient is φ = 47967978250.

The previous prime is 47967978199. The next prime is 47967978259. The reversal of 47967978251 is 15287976974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47967978251 - 2¹⁰ = 47967977227 is a prime.

It is not a weakly prime, because it can be changed into another prime (47967978259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23983989125 + 23983989126.

It is an arithmetic number, because the mean of its divisors is an integer number (23983989126).

Almost surely, 2^47967978251 is an apocalyptic number.

47967978251 is a deficient number, since it is larger than the sum of its proper divisors (1).

47967978251 is an equidigital number, since it uses as much as digits as its factorization.

47967978251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53343360, while the sum is 65.

The spelling of 47967978251 in words is "forty-seven billion, nine hundred sixty-seven million, nine hundred seventy-eight thousand, two hundred fifty-one".