19409419466 has 16 divisors (see below), whose sum is σ = 29498394240. Its totient is φ = 9576752640.

The previous prime is 19409419457. The next prime is 19409419489. The reversal of 19409419466 is 66491490491.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273290 + ... + 336906.

It is an arithmetic number, because the mean of its divisors is an integer number (1843649640).

Almost surely, 2^19409419466 is an apocalyptic number.

19409419466 is a deficient number, since it is larger than the sum of its proper divisors (10088974774).

19409419466 is a wasteful number, since it uses less digits than its factorization.

19409419466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65629.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 19409419466 in words is "nineteen billion, four hundred nine million, four hundred nineteen thousand, four hundred sixty-six".