63546637087 has 2 divisors, whose sum is σ = 63546637088. Its totient is φ = 63546637086.

The previous prime is 63546637081. The next prime is 63546637163. The reversal of 63546637087 is 78073664536.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63546637087 - 2³ = 63546637079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63546637081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31773318543 + 31773318544.

It is an arithmetic number, because the mean of its divisors is an integer number (31773318544).

Almost surely, 2^63546637087 is an apocalyptic number.

63546637087 is a deficient number, since it is larger than the sum of its proper divisors (1).

63546637087 is an equidigital number, since it uses as much as digits as its factorization.

63546637087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 63546637087 in words is "sixty-three billion, five hundred forty-six million, six hundred thirty-seven thousand, eighty-seven".