4519487427491 has 2 divisors, whose sum is σ = 4519487427492. Its totient is φ = 4519487427490.

The previous prime is 4519487427407. The next prime is 4519487427503. The reversal of 4519487427491 is 1947247849154.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4519487427491 is a prime.

It is not a weakly prime, because it can be changed into another prime (4519487327491) 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, 2259743713745 + 2259743713746.

It is an arithmetic number, because the mean of its divisors is an integer number (2259743713746).

Almost surely, 2^{4519487427491} is an apocalyptic number.

4519487427491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4519487427491 is an equidigital number, since it uses as much as digits as its factorization.

4519487427491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 65.

The spelling of 4519487427491 in words is "four trillion, five hundred nineteen billion, four hundred eighty-seven million, four hundred twenty-seven thousand, four hundred ninety-one".