19051429918 has 8 divisors (see below), whose sum is σ = 28871754912. Its totient is φ = 9427511616.

The previous prime is 19051429877. The next prime is 19051429997. The reversal of 19051429918 is 81992415091.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49101430 + ... + 49101817.

It is an arithmetic number, because the mean of its divisors is an integer number (3608969364).

Almost surely, 2^19051429918 is an apocalyptic number.

19051429918 is a deficient number, since it is larger than the sum of its proper divisors (9820324994).

19051429918 is an equidigital number, since it uses as much as digits as its factorization.

19051429918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98203346.

The product of its (nonzero) digits is 233280, while the sum is 49.

The spelling of 19051429918 in words is "nineteen billion, fifty-one million, four hundred twenty-nine thousand, nine hundred eighteen".