2381858811 has 8 divisors (see below), whose sum is σ = 3528679760. Its totient is φ = 1587905856.

The previous prime is 2381858807. The next prime is 2381858813. The reversal of 2381858811 is 1188581832.

It is not a de Polignac number, because 2381858811 - 2² = 2381858807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381858813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44108470 + ... + 44108523.

It is an arithmetic number, because the mean of its divisors is an integer number (441084970).

Almost surely, 2^2381858811 is an apocalyptic number.

2381858811 is a deficient number, since it is larger than the sum of its proper divisors (1146820949).

2381858811 is an equidigital number, since it uses as much as digits as its factorization.

2381858811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88217002 (or 88216996 counting only the distinct ones).

The product of its digits is 122880, while the sum is 45.

The square root of 2381858811 is about 48804.2909076651. The cubic root of 2381858811 is about 1335.4839452377.

The spelling of 2381858811 in words is "two billion, three hundred eighty-one million, eight hundred fifty-eight thousand, eight hundred eleven".