2381299861 has 2 divisors, whose sum is σ = 2381299862. Its totient is φ = 2381299860.

The previous prime is 2381299807. The next prime is 2381299867. The reversal of 2381299861 is 1689921832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1944280836 + 437019025 = 44094^2 + 20905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2381299861 - 2²³ = 2372911253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2381299867) by changing a digit.

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 as a sum of consecutive naturals, namely, 1190649930 + 1190649931.

It is an arithmetic number, because the mean of its divisors is an integer number (1190649931).

Almost surely, 2^2381299861 is an apocalyptic number.

It is an amenable number.

2381299861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381299861 is an equidigital number, since it uses as much as digits as its factorization.

2381299861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 49.

The square root of 2381299861 is about 48798.5641284659. The cubic root of 2381299861 is about 1335.3794712100.

The spelling of 2381299861 in words is "two billion, three hundred eighty-one million, two hundred ninety-nine thousand, eight hundred sixty-one".