2678611843 has 2 divisors, whose sum is σ = 2678611844. Its totient is φ = 2678611842.

The previous prime is 2678611739. The next prime is 2678611847. The reversal of 2678611843 is 3481168762.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2678611843 - 2¹³ = 2678603651 is a prime.

It is a super-2 number, since 2×2678611843² = 14349922810919713298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2678611793 and 2678611802.

It is not a weakly prime, because it can be changed into another prime (2678611847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339305921 + 1339305922.

It is an arithmetic number, because the mean of its divisors is an integer number (1339305922).

Almost surely, 2^2678611843 is an apocalyptic number.

2678611843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678611843 is an equidigital number, since it uses as much as digits as its factorization.

2678611843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 2678611843 is about 51755.3073896774. The cubic root of 2678611843 is about 1388.7900453621.

The spelling of 2678611843 in words is "two billion, six hundred seventy-eight million, six hundred eleven thousand, eight hundred forty-three".