19064691194 has 16 divisors (see below), whose sum is σ = 28716508800. Its totient is φ = 9492556320.

The previous prime is 19064691193. The next prime is 19064691203. The reversal of 19064691194 is 49119646091.

It is a super-2 number, since 2×19064691194² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19064691193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289657 + ... + 1304355.

It is an arithmetic number, because the mean of its divisors is an integer number (1794781800).

Almost surely, 2^19064691194 is an apocalyptic number.

19064691194 is a deficient number, since it is larger than the sum of its proper divisors (9651817606).

19064691194 is a wasteful number, since it uses less digits than its factorization.

19064691194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17365.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 19064691194 in words is "nineteen billion, sixty-four million, six hundred ninety-one thousand, one hundred ninety-four".