19009069387 has 24 divisors (see below), whose sum is σ = 23895260928. Its totient is φ = 14802276720.

The previous prime is 19009069369. The next prime is 19009069393. The reversal of 19009069387 is 78396090091.

It is not a de Polignac number, because 19009069387 - 2¹¹ = 19009067339 is a prime.

It is a super-2 number, since 2×19009069387² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19009069357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1405218 + ... + 1418680.

It is an arithmetic number, because the mean of its divisors is an integer number (995635872).

Almost surely, 2^19009069387 is an apocalyptic number.

19009069387 is a deficient number, since it is larger than the sum of its proper divisors (4886191541).

19009069387 is a wasteful number, since it uses less digits than its factorization.

19009069387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15159 (or 15148 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The spelling of 19009069387 in words is "nineteen billion, nine million, sixty-nine thousand, three hundred eighty-seven".