47687124889 has 2 divisors, whose sum is σ = 47687124890. Its totient is φ = 47687124888.

The previous prime is 47687124857. The next prime is 47687124923. The reversal of 47687124889 is 98842178674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46326105225 + 1361019664 = 215235^2 + 36892^2 .

It is a cyclic number.

It is not a de Polignac number, because 47687124889 - 2⁵ = 47687124857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47687124889.

It is not a weakly prime, because it can be changed into another prime (47687124809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23843562444 + 23843562445.

It is an arithmetic number, because the mean of its divisors is an integer number (23843562445).

Almost surely, 2^47687124889 is an apocalyptic number.

It is an amenable number.

47687124889 is a deficient number, since it is larger than the sum of its proper divisors (1).

47687124889 is an equidigital number, since it uses as much as digits as its factorization.

47687124889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43352064, while the sum is 64.

The spelling of 47687124889 in words is "forty-seven billion, six hundred eighty-seven million, one hundred twenty-four thousand, eight hundred eighty-nine".