63981200592720 has 240 divisors, whose sum is σ = 220881436468992. Its totient is φ = 16590918113280.

The previous prime is 63981200592607. The next prime is 63981200592733. The reversal of 63981200592720 is 2729500218936.

63981200592720 is a `hidden beast` number, since 6 + 3 + 9 + 8 + 1 + 20 + 0 + 592 + 7 + 20 = 666.

63981200592720 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 (240).

It is a super-4 number, since 4×63981200592720⁴ (a number of 56 digits) contains 4444 as substring.

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 47 ways as a sum of consecutive naturals, for example, 4840764 + ... + 12304283.

Almost surely, 2^{63981200592720} is an apocalyptic number.

63981200592720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63981200592720 is an abundant number, since it is smaller than the sum of its proper divisors (156900235876272).

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

63981200592720 is a wasteful number, since it uses less digits than its factorization.

63981200592720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17145210 (or 17145201 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 63981200592720 in words is "sixty-three trillion, nine hundred eighty-one billion, two hundred million, five hundred ninety-two thousand, seven hundred twenty".