47976444287 has 2 divisors, whose sum is σ = 47976444288. Its totient is φ = 47976444286.

The previous prime is 47976444221. The next prime is 47976444289. The reversal of 47976444287 is 78244467974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47976444287 is a prime.

It is a super-2 number, since 2×47976444287² (a number of 22 digits) contains 22 as substring.

Together with 47976444289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47976444289) 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, 23988222143 + 23988222144.

It is an arithmetic number, because the mean of its divisors is an integer number (23988222144).

Almost surely, 2^47976444287 is an apocalyptic number.

47976444287 is a deficient number, since it is larger than the sum of its proper divisors (1).

47976444287 is an equidigital number, since it uses as much as digits as its factorization.

47976444287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75866112, while the sum is 62.

The spelling of 47976444287 in words is "forty-seven billion, nine hundred seventy-six million, four hundred forty-four thousand, two hundred eighty-seven".