6837680491 has 2 divisors, whose sum is σ = 6837680492. Its totient is φ = 6837680490.

The previous prime is 6837680429. The next prime is 6837680527. The reversal of 6837680491 is 1940867386.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6837680491 - 2¹⁵ = 6837647723 is a prime.

It is not a weakly prime, because it can be changed into another prime (6837680411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3418840245 + 3418840246.

It is an arithmetic number, because the mean of its divisors is an integer number (3418840246).

Almost surely, 2^6837680491 is an apocalyptic number.

6837680491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6837680491 is an equidigital number, since it uses as much as digits as its factorization.

6837680491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 6837680491 is about 82690.2684177528. The cubic root of 6837680491 is about 1898.0293964881.

The spelling of 6837680491 in words is "six billion, eight hundred thirty-seven million, six hundred eighty thousand, four hundred ninety-one".