2861368837 has 2 divisors, whose sum is σ = 2861368838. Its totient is φ = 2861368836.

The previous prime is 2861368831. The next prime is 2861368847. The reversal of 2861368837 is 7388631682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1466047521 + 1395321316 = 38289^2 + 37354^2 .

It is a cyclic number.

It is not a de Polignac number, because 2861368837 - 2⁷ = 2861368709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2861368831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430684418 + 1430684419.

It is an arithmetic number, because the mean of its divisors is an integer number (1430684419).

Almost surely, 2^2861368837 is an apocalyptic number.

It is an amenable number.

2861368837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861368837 is an equidigital number, since it uses as much as digits as its factorization.

2861368837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 52.

The square root of 2861368837 is about 53491.7641978651. The cubic root of 2861368837 is about 1419.6826701146.

The spelling of 2861368837 in words is "two billion, eight hundred sixty-one million, three hundred sixty-eight thousand, eight hundred thirty-seven".