18882928387 has 16 divisors (see below), whose sum is σ = 19233446400. Its totient is φ = 18536112000.

The previous prime is 18882928349. The next prime is 18882928439. The reversal of 18882928387 is 78382928881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18882928387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18882928087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12836062 + ... + 12837532.

It is an arithmetic number, because the mean of its divisors is an integer number (1202090400).

Almost surely, 2^18882928387 is an apocalyptic number.

18882928387 is a deficient number, since it is larger than the sum of its proper divisors (350518013).

18882928387 is a wasteful number, since it uses less digits than its factorization.

18882928387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its digits is 24772608, while the sum is 64.

The spelling of 18882928387 in words is "eighteen billion, eight hundred eighty-two million, nine hundred twenty-eight thousand, three hundred eighty-seven".