6630346787 has 2 divisors, whose sum is σ = 6630346788. Its totient is φ = 6630346786.

The previous prime is 6630346769. The next prime is 6630346841. The reversal of 6630346787 is 7876430366.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6630346787 is a prime.

It is a super-2 number, since 2×6630346787² = 87922997031762446738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6630346717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315173393 + 3315173394.

It is an arithmetic number, because the mean of its divisors is an integer number (3315173394).

Almost surely, 2^6630346787 is an apocalyptic number.

6630346787 is a deficient number, since it is larger than the sum of its proper divisors (1).

6630346787 is an equidigital number, since it uses as much as digits as its factorization.

6630346787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The square root of 6630346787 is about 81426.9414076201. The cubic root of 6630346787 is about 1878.6480006132.

The spelling of 6630346787 in words is "six billion, six hundred thirty million, three hundred forty-six thousand, seven hundred eighty-seven".