19134345185 has 16 divisors (see below), whose sum is σ = 23089968000. Its totient is φ = 15221846016.

The previous prime is 19134345151. The next prime is 19134345229. The reversal of 19134345185 is 58154343191.

It is a cyclic number.

It is not a de Polignac number, because 19134345185 - 2¹⁶ = 19134279649 is a prime.

It is a super-2 number, since 2×19134345185² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757286 + ... + 782144.

It is an arithmetic number, because the mean of its divisors is an integer number (1443123000).

Almost surely, 2^19134345185 is an apocalyptic number.

It is an amenable number.

19134345185 is a deficient number, since it is larger than the sum of its proper divisors (3955622815).

19134345185 is a wasteful number, since it uses less digits than its factorization.

19134345185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25720.

The product of its digits is 259200, while the sum is 44.

The spelling of 19134345185 in words is "nineteen billion, one hundred thirty-four million, three hundred forty-five thousand, one hundred eighty-five".