63849203856 has 75 divisors (see below), whose sum is σ = 184824452131. Its totient is φ = 21280035744.

The previous prime is 63849203851. The next prime is 63849203879. The reversal of 63849203856 is 65830294836.

The square root of 63849203856 is 252684.

It is a perfect power (a square), and thus also a powerful number.

63849203856 is a `hidden beast` number, since 6 + 384 + 9 + 203 + 8 + 56 = 666.

63849203856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63849203851) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 9093115 + ... + 9100133.

Almost surely, 2^63849203856 is an apocalyptic number.

63849203856 is the 252684-th square number.

It is an amenable number.

63849203856 is an abundant number, since it is smaller than the sum of its proper divisors (120975248275).

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

63849203856 is an frugal number, since it uses more digits than its factorization.

63849203856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14058 (or 7024 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 63849203856 in words is "sixty-three billion, eight hundred forty-nine million, two hundred three thousand, eight hundred fifty-six".