19270009489 has 2 divisors, whose sum is σ = 19270009490. Its totient is φ = 19270009488.

The previous prime is 19270009463. The next prime is 19270009547. The reversal of 19270009489 is 98490007291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19115827600 + 154181889 = 138260^2 + 12417^2 .

It is a cyclic number.

It is not a de Polignac number, because 19270009489 - 2¹⁷ = 19269878417 is a prime.

It is a super-2 number, since 2×19270009489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19270009459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9635004744 + 9635004745.

It is an arithmetic number, because the mean of its divisors is an integer number (9635004745).

Almost surely, 2^19270009489 is an apocalyptic number.

It is an amenable number.

19270009489 is a deficient number, since it is larger than the sum of its proper divisors (1).

19270009489 is an equidigital number, since it uses as much as digits as its factorization.

19270009489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 19270009489 in words is "nineteen billion, two hundred seventy million, nine thousand, four hundred eighty-nine".