63748923518 has 16 divisors (see below), whose sum is σ = 113052278880. Its totient is φ = 26378864736.

The previous prime is 63748923503. The next prime is 63748923533. The reversal of 63748923518 is 81532984736.

It is an interprime number because it is at equal distance from previous prime (63748923503) and next prime (63748923533).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 78508121 + ... + 78508932.

It is an arithmetic number, because the mean of its divisors is an integer number (7065767430).

Almost surely, 2^63748923518 is an apocalyptic number.

63748923518 is a deficient number, since it is larger than the sum of its proper divisors (49303355362).

63748923518 is a wasteful number, since it uses less digits than its factorization.

63748923518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157017091.

The product of its digits is 8709120, while the sum is 56.

The spelling of 63748923518 in words is "sixty-three billion, seven hundred forty-eight million, nine hundred twenty-three thousand, five hundred eighteen".