19485498247 has 2 divisors, whose sum is σ = 19485498248. Its totient is φ = 19485498246.

The previous prime is 19485498233. The next prime is 19485498281. The reversal of 19485498247 is 74289458491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19485498247 - 2²⁷ = 19351280519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19485498047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9742749123 + 9742749124.

It is an arithmetic number, because the mean of its divisors is an integer number (9742749124).

Almost surely, 2^19485498247 is an apocalyptic number.

19485498247 is a deficient number, since it is larger than the sum of its proper divisors (1).

19485498247 is an equidigital number, since it uses as much as digits as its factorization.

19485498247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 61.

The spelling of 19485498247 in words is "nineteen billion, four hundred eighty-five million, four hundred ninety-eight thousand, two hundred forty-seven".