2068978937 has 2 divisors, whose sum is σ = 2068978938. Its totient is φ = 2068978936.

The previous prime is 2068978903. The next prime is 2068978939. The reversal of 2068978937 is 7398798602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1346229481 + 722749456 = 36691^2 + 26884^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068978937 - 2²⁴ = 2052201721 is a prime.

Together with 2068978939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2068978939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034489468 + 1034489469.

It is an arithmetic number, because the mean of its divisors is an integer number (1034489469).

Almost surely, 2^2068978937 is an apocalyptic number.

It is an amenable number.

2068978937 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068978937 is an equidigital number, since it uses as much as digits as its factorization.

2068978937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The square root of 2068978937 is about 45486.0301301400. The cubic root of 2068978937 is about 1274.2423153261.

The spelling of 2068978937 in words is "two billion, sixty-eight million, nine hundred seventy-eight thousand, nine hundred thirty-seven".