19134187207 has 2 divisors, whose sum is σ = 19134187208. Its totient is φ = 19134187206.

The previous prime is 19134187187. The next prime is 19134187223. The reversal of 19134187207 is 70278143191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19134187207 - 2¹⁵ = 19134154439 is a prime.

It is a super-2 number, since 2×19134187207² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19134187307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9567093603 + 9567093604.

It is an arithmetic number, because the mean of its divisors is an integer number (9567093604).

Almost surely, 2^19134187207 is an apocalyptic number.

19134187207 is a deficient number, since it is larger than the sum of its proper divisors (1).

19134187207 is an equidigital number, since it uses as much as digits as its factorization.

19134187207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 19134187207 in words is "nineteen billion, one hundred thirty-four million, one hundred eighty-seven thousand, two hundred seven".