5481859991 has 2 divisors, whose sum is σ = 5481859992. Its totient is φ = 5481859990.

The previous prime is 5481859961. The next prime is 5481860051. The reversal of 5481859991 is 1999581845.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5481859991 - 2¹⁴ = 5481843607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5481859991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5481859961) 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, 2740929995 + 2740929996.

It is an arithmetic number, because the mean of its divisors is an integer number (2740929996).

Almost surely, 2^5481859991 is an apocalyptic number.

5481859991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5481859991 is an equidigital number, since it uses as much as digits as its factorization.

5481859991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 59.

The square root of 5481859991 is about 74039.5839466971. The cubic root of 5481859991 is about 1763.2314074905.

The spelling of 5481859991 in words is "five billion, four hundred eighty-one million, eight hundred fifty-nine thousand, nine hundred ninety-one".