63980297948 has 12 divisors (see below), whose sum is σ = 127960595952. Its totient is φ = 27420127680.

The previous prime is 63980297939. The next prime is 63980297987. The reversal of 63980297948 is 84979208936.

63980297948 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142505293 + ... + 1142505348.

It is an arithmetic number, because the mean of its divisors is an integer number (10663382996).

Almost surely, 2^63980297948 is an apocalyptic number.

It is an amenable number.

63980297948 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63980297948 is a wasteful number, since it uses less digits than its factorization.

63980297948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285010652 (or 2285010650 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 63980297948 in words is "sixty-three billion, nine hundred eighty million, two hundred ninety-seven thousand, nine hundred forty-eight".