6630626987 has 16 divisors (see below), whose sum is σ = 6735393600. Its totient is φ = 6527001600.

The previous prime is 6630626971. The next prime is 6630627041. The reversal of 6630626987 is 7896260366.

It is a cyclic number.

It is not a de Polignac number, because 6630626987 - 2⁴ = 6630626971 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6630626287) 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 in 15 ways as a sum of consecutive naturals, for example, 11652839 + ... + 11653407.

It is an arithmetic number, because the mean of its divisors is an integer number (420962100).

Almost surely, 2^6630626987 is an apocalyptic number.

6630626987 is a deficient number, since it is larger than the sum of its proper divisors (104766613).

6630626987 is a wasteful number, since it uses less digits than its factorization.

6630626987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 6630626987 is about 81428.6619502003. The cubic root of 6630626987 is about 1878.6744642745.

The spelling of 6630626987 in words is "six billion, six hundred thirty million, six hundred twenty-six thousand, nine hundred eighty-seven".