19009930615 has 16 divisors (see below), whose sum is σ = 24660111168. Its totient is φ = 13984713216.

The previous prime is 19009930613. The next prime is 19009930619. The reversal of 19009930615 is 51603990091.

It is a cyclic number.

It is not a de Polignac number, because 19009930615 - 2¹ = 19009930613 is a prime.

It is a super-2 number, since 2×19009930615² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19009930613) 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 15 ways as a sum of consecutive naturals, for example, 538914 + ... + 573103.

It is an arithmetic number, because the mean of its divisors is an integer number (1541256948).

Almost surely, 2^19009930615 is an apocalyptic number.

19009930615 is a deficient number, since it is larger than the sum of its proper divisors (5650180553).

19009930615 is a wasteful number, since it uses less digits than its factorization.

19009930615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112298.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 19009930615 in words is "nineteen billion, nine million, nine hundred thirty thousand, six hundred fifteen".