63718549000 has 32 divisors (see below), whose sum is σ = 149101407000. Its totient is φ = 25487419200.

The previous prime is 63718548989. The next prime is 63718549001. The reversal of 63718549000 is 94581736.

It can be written as a sum of positive squares in 4 ways, for example, as 17425584036 + 46292964964 = 132006^2 + 215158^2 .

It is not an unprimeable number, because it can be changed into a prime (63718549001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31858275 + ... + 31860274.

Almost surely, 2^63718549000 is an apocalyptic number.

It is an amenable number.

63718549000 is an abundant number, since it is smaller than the sum of its proper divisors (85382858000).

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

63718549000 is a wasteful number, since it uses less digits than its factorization.

63718549000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63718570 (or 63718556 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 63718549000 in words is "sixty-three billion, seven hundred eighteen million, five hundred forty-nine thousand".