63015387872 has 24 divisors (see below), whose sum is σ = 124206024600. Its totient is φ = 31471000704.

The previous prime is 63015387871. The next prime is 63015387887. The reversal of 63015387872 is 27878351036.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 63015387872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63015387871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118747 + ... + 1173722.

It is an arithmetic number, because the mean of its divisors is an integer number (5175251025).

Almost surely, 2^63015387872 is an apocalyptic number.

It is an amenable number.

63015387872 is a deficient number, since it is larger than the sum of its proper divisors (61190636728).

63015387872 is a wasteful number, since it uses less digits than its factorization.

63015387872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293338 (or 2293330 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 63015387872 in words is "sixty-three billion, fifteen million, three hundred eighty-seven thousand, eight hundred seventy-two".