63632738987 has 2 divisors, whose sum is σ = 63632738988. Its totient is φ = 63632738986.

The previous prime is 63632738963. The next prime is 63632738989. The reversal of 63632738987 is 78983723636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63632738987 - 2⁸ = 63632738731 is a prime.

Together with 63632738989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63632738989) 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 as a sum of consecutive naturals, namely, 31816369493 + 31816369494.

It is an arithmetic number, because the mean of its divisors is an integer number (31816369494).

Almost surely, 2^63632738987 is an apocalyptic number.

63632738987 is a deficient number, since it is larger than the sum of its proper divisors (1).

63632738987 is an equidigital number, since it uses as much as digits as its factorization.

63632738987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54867456, while the sum is 62.

The spelling of 63632738987 in words is "sixty-three billion, six hundred thirty-two million, seven hundred thirty-eight thousand, nine hundred eighty-seven".