6629984651 has 2 divisors, whose sum is σ = 6629984652. Its totient is φ = 6629984650.

The previous prime is 6629984579. The next prime is 6629984657. The reversal of 6629984651 is 1564899266.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6629984651 is a prime.

It is not a weakly prime, because it can be changed into another prime (6629984657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314992325 + 3314992326.

It is an arithmetic number, because the mean of its divisors is an integer number (3314992326).

Almost surely, 2^6629984651 is an apocalyptic number.

6629984651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629984651 is an equidigital number, since it uses as much as digits as its factorization.

6629984651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 56.

The square root of 6629984651 is about 81424.7176906374. The cubic root of 6629984651 is about 1878.6137973515.

The spelling of 6629984651 in words is "six billion, six hundred twenty-nine million, nine hundred eighty-four thousand, six hundred fifty-one".