63672631777520 has 20 divisors (see below), whose sum is σ = 148038868882920. Its totient is φ = 25469052710976.

The previous prime is 63672631777519. The next prime is 63672631777561. The reversal of 63672631777520 is 2577713627636.

It is a happy number.

63672631777520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 397953948530 + ... + 397953948689.

It is an arithmetic number, because the mean of its divisors is an integer number (7401943444146).

Almost surely, 2^{63672631777520} is an apocalyptic number.

It is an amenable number.

63672631777520 is an abundant number, since it is smaller than the sum of its proper divisors (84366237105400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63672631777520 is a wasteful number, since it uses less digits than its factorization.

63672631777520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795907897232 (or 795907897226 counting only the distinct ones).

The product of its (nonzero) digits is 93350880, while the sum is 62.

The spelling of 63672631777520 in words is "sixty-three trillion, six hundred seventy-two billion, six hundred thirty-one million, seven hundred seventy-seven thousand, five hundred twenty".