2686042651 has 2 divisors, whose sum is σ = 2686042652. Its totient is φ = 2686042650.

The previous prime is 2686042643. The next prime is 2686042747. The reversal of 2686042651 is 1562406862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2686042651 - 2³ = 2686042643 is a prime.

It is a super-2 number, since 2×2686042651² = 14429650245982215602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2686042351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343021325 + 1343021326.

It is an arithmetic number, because the mean of its divisors is an integer number (1343021326).

Almost surely, 2^2686042651 is an apocalyptic number.

2686042651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686042651 is an equidigital number, since it uses as much as digits as its factorization.

2686042651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2686042651 is about 51827.0455553855. The cubic root of 2686042651 is about 1390.0730860593.

The spelling of 2686042651 in words is "two billion, six hundred eighty-six million, forty-two thousand, six hundred fifty-one".