19219309941 has 8 divisors (see below), whose sum is σ = 27596957920. Its totient is φ = 11827267632.

The previous prime is 19219309877. The next prime is 19219310051. The reversal of 19219309941 is 14990391291.

It is a happy number.

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

It is not a de Polignac number, because 19219309941 - 2⁶ = 19219309877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19219309141) 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, 246401371 + ... + 246401448.

It is an arithmetic number, because the mean of its divisors is an integer number (3449619740).

Almost surely, 2^19219309941 is an apocalyptic number.

It is an amenable number.

19219309941 is a deficient number, since it is larger than the sum of its proper divisors (8377647979).

19219309941 is a wasteful number, since it uses less digits than its factorization.

19219309941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492802835.

The product of its (nonzero) digits is 157464, while the sum is 48.

The spelling of 19219309941 in words is "nineteen billion, two hundred nineteen million, three hundred nine thousand, nine hundred forty-one".