5480187991 has 2 divisors, whose sum is σ = 5480187992. Its totient is φ = 5480187990.

The previous prime is 5480187959. The next prime is 5480187997. The reversal of 5480187991 is 1997810845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5480187991 - 2⁵ = 5480187959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5480187997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2740093995 + 2740093996.

It is an arithmetic number, because the mean of its divisors is an integer number (2740093996).

Almost surely, 2^5480187991 is an apocalyptic number.

5480187991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5480187991 is an equidigital number, since it uses as much as digits as its factorization.

5480187991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 52.

The square root of 5480187991 is about 74028.2918281923. The cubic root of 5480187991 is about 1763.0521238957.

The spelling of 5480187991 in words is "five billion, four hundred eighty million, one hundred eighty-seven thousand, nine hundred ninety-one".