19007738956807 has 2 divisors, whose sum is σ = 19007738956808. Its totient is φ = 19007738956806.

The previous prime is 19007738956733. The next prime is 19007738956849. The reversal of 19007738956807 is 70865983770091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19007738956807 - 2¹⁹ = 19007738432519 is a prime.

It is a super-2 number, since 2×19007738956807² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19007738956867) 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, 9503869478403 + 9503869478404.

It is an arithmetic number, because the mean of its divisors is an integer number (9503869478404).

Almost surely, 2^{19007738956807} is an apocalyptic number.

19007738956807 is a deficient number, since it is larger than the sum of its proper divisors (1).

19007738956807 is an equidigital number, since it uses as much as digits as its factorization.

19007738956807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160030080, while the sum is 70.

The spelling of 19007738956807 in words is "nineteen trillion, seven billion, seven hundred thirty-eight million, nine hundred fifty-six thousand, eight hundred seven".