63546812887 has 2 divisors, whose sum is σ = 63546812888. Its totient is φ = 63546812886.

The previous prime is 63546812869. The next prime is 63546812893. The reversal of 63546812887 is 78821864536.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63546812887 - 2⁷ = 63546812759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63546812867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31773406443 + 31773406444.

It is an arithmetic number, because the mean of its divisors is an integer number (31773406444).

Almost surely, 2^63546812887 is an apocalyptic number.

63546812887 is a deficient number, since it is larger than the sum of its proper divisors (1).

63546812887 is an equidigital number, since it uses as much as digits as its factorization.

63546812887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 58.

The spelling of 63546812887 in words is "sixty-three billion, five hundred forty-six million, eight hundred twelve thousand, eight hundred eighty-seven".