2381442787 has 2 divisors, whose sum is σ = 2381442788. Its totient is φ = 2381442786.

The previous prime is 2381442769. The next prime is 2381442797. The reversal of 2381442787 is 7872441832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2381442787 - 2¹⁵ = 2381410019 is a prime.

It is not a weakly prime, because it can be changed into another prime (2381442757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190721393 + 1190721394.

It is an arithmetic number, because the mean of its divisors is an integer number (1190721394).

Almost surely, 2^2381442787 is an apocalyptic number.

2381442787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381442787 is an equidigital number, since it uses as much as digits as its factorization.

2381442787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 46.

The square root of 2381442787 is about 48800.0285553195. The cubic root of 2381442787 is about 1335.4061872389.

The spelling of 2381442787 in words is "two billion, three hundred eighty-one million, four hundred forty-two thousand, seven hundred eighty-seven".