63731006420 has 24 divisors (see below), whose sum is σ = 136682671104. Its totient is φ = 24950010656.

The previous prime is 63731006413. The next prime is 63731006483. The reversal of 63731006420 is 2460013736.

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, 33898532 + ... + 33900411.

It is an arithmetic number, because the mean of its divisors is an integer number (5695111296).

Almost surely, 2^63731006420 is an apocalyptic number.

It is an amenable number.

63731006420 is an abundant number, since it is smaller than the sum of its proper divisors (72951664684).

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

63731006420 is a wasteful number, since it uses less digits than its factorization.

63731006420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67798999 (or 67798997 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 63731006420 in words is "sixty-three billion, seven hundred thirty-one million, six thousand, four hundred twenty".