19984135607 has 2 divisors, whose sum is σ = 19984135608. Its totient is φ = 19984135606.

The previous prime is 19984135559. The next prime is 19984135651. The reversal of 19984135607 is 70653148991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19984135607 - 2¹⁴ = 19984119223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19984135687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9992067803 + 9992067804.

It is an arithmetic number, because the mean of its divisors is an integer number (9992067804).

Almost surely, 2^19984135607 is an apocalyptic number.

19984135607 is a deficient number, since it is larger than the sum of its proper divisors (1).

19984135607 is an equidigital number, since it uses as much as digits as its factorization.

19984135607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 19984135607 in words is "nineteen billion, nine hundred eighty-four million, one hundred thirty-five thousand, six hundred seven".