63996906548 has 24 divisors (see below), whose sum is σ = 112356559392. Its totient is φ = 31895128224.

The previous prime is 63996906511. The next prime is 63996906599. The reversal of 63996906548 is 84560969936.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2953811 + ... + 2975397.

It is an arithmetic number, because the mean of its divisors is an integer number (4681523308).

Almost surely, 2^63996906548 is an apocalyptic number.

It is an amenable number.

63996906548 is a deficient number, since it is larger than the sum of its proper divisors (48359652844).

63996906548 is a wasteful number, since it uses less digits than its factorization.

63996906548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23951 (or 23949 counting only the distinct ones).

The product of its (nonzero) digits is 75582720, while the sum is 65.

The spelling of 63996906548 in words is "sixty-three billion, nine hundred ninety-six million, nine hundred six thousand, five hundred forty-eight".