2678204237 has 2 divisors, whose sum is σ = 2678204238. Its totient is φ = 2678204236.

The previous prime is 2678204213. The next prime is 2678204239. The reversal of 2678204237 is 7324028762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2507405476 + 170798761 = 50074^2 + 13069^2 .

It is a cyclic number.

It is not a de Polignac number, because 2678204237 - 2²⁰ = 2677155661 is a prime.

Together with 2678204239, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2678204194 and 2678204203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2678204239) 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, 1339102118 + 1339102119.

It is an arithmetic number, because the mean of its divisors is an integer number (1339102119).

Almost surely, 2^2678204237 is an apocalyptic number.

It is an amenable number.

2678204237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678204237 is an equidigital number, since it uses as much as digits as its factorization.

2678204237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 2678204237 is about 51751.3694214945. The cubic root of 2678204237 is about 1388.7195974455.

The spelling of 2678204237 in words is "two billion, six hundred seventy-eight million, two hundred four thousand, two hundred thirty-seven".