19189461914 has 8 divisors (see below), whose sum is σ = 32896220448. Its totient is φ = 8224055100.

The previous prime is 19189461847. The next prime is 19189461947. The reversal of 19189461914 is 41916498191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685337912 + ... + 685337939.

It is an arithmetic number, because the mean of its divisors is an integer number (4112027556).

Almost surely, 2^19189461914 is an apocalyptic number.

19189461914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19189461914 is a deficient number, since it is larger than the sum of its proper divisors (13706758534).

19189461914 is a wasteful number, since it uses less digits than its factorization.

19189461914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370675860.

The product of its digits is 559872, while the sum is 53.

The spelling of 19189461914 in words is "nineteen billion, one hundred eighty-nine million, four hundred sixty-one thousand, nine hundred fourteen".