47989166387 has 2 divisors, whose sum is σ = 47989166388. Its totient is φ = 47989166386.

The previous prime is 47989166383. The next prime is 47989166417. The reversal of 47989166387 is 78366198974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47989166387 - 2² = 47989166383 is a prime.

It is not a weakly prime, because it can be changed into another prime (47989166383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23994583193 + 23994583194.

It is an arithmetic number, because the mean of its divisors is an integer number (23994583194).

Almost surely, 2^47989166387 is an apocalyptic number.

47989166387 is a deficient number, since it is larger than the sum of its proper divisors (1).

47989166387 is an equidigital number, since it uses as much as digits as its factorization.

47989166387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109734912, while the sum is 68.

The spelling of 47989166387 in words is "forty-seven billion, nine hundred eighty-nine million, one hundred sixty-six thousand, three hundred eighty-seven".