63837798672 has 60 divisors (see below), whose sum is σ = 172396316624. Its totient is φ = 20354072640.

The previous prime is 63837798653. The next prime is 63837798677. The reversal of 63837798672 is 27689773836.

It is not an unprimeable number, because it can be changed into a prime (63837798677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1231654 + ... + 1282437.

Almost surely, 2^63837798672 is an apocalyptic number.

It is an amenable number.

63837798672 is an abundant number, since it is smaller than the sum of its proper divisors (108558517952).

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

63837798672 is a wasteful number, since it uses less digits than its factorization.

63837798672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514148 (or 2514119 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 66.

The spelling of 63837798672 in words is "sixty-three billion, eight hundred thirty-seven million, seven hundred ninety-eight thousand, six hundred seventy-two".