19413097009 has 2 divisors, whose sum is σ = 19413097010. Its totient is φ = 19413097008.

The previous prime is 19413096979. The next prime is 19413097021. The reversal of 19413097009 is 90079031491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19119145984 + 293951025 = 138272^2 + 17145^2 .

It is a cyclic number.

It is not a de Polignac number, because 19413097009 - 2⁷ = 19413096881 is a prime.

It is not a weakly prime, because it can be changed into another prime (19413097609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9706548504 + 9706548505.

It is an arithmetic number, because the mean of its divisors is an integer number (9706548505).

Almost surely, 2^19413097009 is an apocalyptic number.

It is an amenable number.

19413097009 is a deficient number, since it is larger than the sum of its proper divisors (1).

19413097009 is an equidigital number, since it uses as much as digits as its factorization.

19413097009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 19413097009 in words is "nineteen billion, four hundred thirteen million, ninety-seven thousand, nine".