2381819109 has 16 divisors (see below), whose sum is σ = 3255154560. Its totient is φ = 1548227840.

The previous prime is 2381819101. The next prime is 2381819129. The reversal of 2381819109 is 9019181832.

It is a cyclic number.

It is not a de Polignac number, because 2381819109 - 2³ = 2381819101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381819101) 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, 246049 + ... + 255545.

It is an arithmetic number, because the mean of its divisors is an integer number (203447160).

Almost surely, 2^2381819109 is an apocalyptic number.

It is an amenable number.

2381819109 is a deficient number, since it is larger than the sum of its proper divisors (873335451).

2381819109 is a wasteful number, since it uses less digits than its factorization.

2381819109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11580.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 2381819109 is about 48803.8841589478. The cubic root of 2381819109 is about 1335.4765250276.

The spelling of 2381819109 in words is "two billion, three hundred eighty-one million, eight hundred nineteen thousand, one hundred nine".