2861837345863 has 2 divisors, whose sum is σ = 2861837345864. Its totient is φ = 2861837345862.

The previous prime is 2861837345827. The next prime is 2861837345867. The reversal of 2861837345863 is 3685437381682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2861837345863 - 2³³ = 2853247411271 is a prime.

It is a super-2 number, since 2×2861837345863² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2861837345795 and 2861837345804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2861837345867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430918672931 + 1430918672932.

It is an arithmetic number, because the mean of its divisors is an integer number (1430918672932).

Almost surely, 2^{2861837345863} is an apocalyptic number.

2861837345863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861837345863 is an equidigital number, since it uses as much as digits as its factorization.

2861837345863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139345920, while the sum is 64.

The spelling of 2861837345863 in words is "two trillion, eight hundred sixty-one billion, eight hundred thirty-seven million, three hundred forty-five thousand, eight hundred sixty-three".