19117328465 has 16 divisors (see below), whose sum is σ = 23711761920. Its totient is φ = 14781173760.

The previous prime is 19117328429. The next prime is 19117328491. The reversal of 19117328465 is 56482371191.

It is not a de Polignac number, because 19117328465 - 2¹⁶ = 19117262929 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 39002 + ... + 199388.

It is an arithmetic number, because the mean of its divisors is an integer number (1481985120).

Almost surely, 2^19117328465 is an apocalyptic number.

It is an amenable number.

19117328465 is a deficient number, since it is larger than the sum of its proper divisors (4594433455).

19117328465 is a wasteful number, since it uses less digits than its factorization.

19117328465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161192.

The product of its digits is 362880, while the sum is 47.

The spelling of 19117328465 in words is "nineteen billion, one hundred seventeen million, three hundred twenty-eight thousand, four hundred sixty-five".