19621009119 has 32 divisors (see below), whose sum is σ = 29174929920. Its totient is φ = 11665820672.

The previous prime is 19621009103. The next prime is 19621009127. The reversal of 19621009119 is 91190012691.

It is a cyclic number.

It is not a de Polignac number, because 19621009119 - 2⁴ = 19621009103 is a prime.

It is a super-2 number, since 2×19621009119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19621009139) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 47347 + ... + 203675.

It is an arithmetic number, because the mean of its divisors is an integer number (911716560).

Almost surely, 2^19621009119 is an apocalyptic number.

19621009119 is a deficient number, since it is larger than the sum of its proper divisors (9553920801).

19621009119 is a wasteful number, since it uses less digits than its factorization.

19621009119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156479.

The product of its (nonzero) digits is 8748, while the sum is 39.

The spelling of 19621009119 in words is "nineteen billion, six hundred twenty-one million, nine thousand, one hundred nineteen".