2068558631 has 2 divisors, whose sum is σ = 2068558632. Its totient is φ = 2068558630.

The previous prime is 2068558627. The next prime is 2068558643. The reversal of 2068558631 is 1368558602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2068558631 - 2² = 2068558627 is a prime.

It is a super-2 number, since 2×2068558631² = 8557869619769188322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2068558931) 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, 1034279315 + 1034279316.

It is an arithmetic number, because the mean of its divisors is an integer number (1034279316).

Almost surely, 2^2068558631 is an apocalyptic number.

2068558631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068558631 is an equidigital number, since it uses as much as digits as its factorization.

2068558631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 2068558631 is about 45481.4097296907. The cubic root of 2068558631 is about 1274.1560234920.

The spelling of 2068558631 in words is "two billion, sixty-eight million, five hundred fifty-eight thousand, six hundred thirty-one".