19158719116 has 6 divisors (see below), whose sum is σ = 33527758460. Its totient is φ = 9579359556.

The previous prime is 19158719089. The next prime is 19158719117. The reversal of 19158719116 is 61191785191.

It is a self number, because there is not a number n which added to its sum of digits gives 19158719116.

It is not an unprimeable number, because it can be changed into a prime (19158719117) 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, 2394839886 + ... + 2394839893.

Almost surely, 2^19158719116 is an apocalyptic number.

It is an amenable number.

19158719116 is a deficient number, since it is larger than the sum of its proper divisors (14369039344).

19158719116 is a wasteful number, since it uses less digits than its factorization.

19158719116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789679783 (or 4789679781 counting only the distinct ones).

The product of its digits is 136080, while the sum is 49.

The spelling of 19158719116 in words is "nineteen billion, one hundred fifty-eight million, seven hundred nineteen thousand, one hundred sixteen".