63890650756 has 27 divisors (see below), whose sum is σ = 114280660389. Its totient is φ = 31254010368.

The previous prime is 63890650679. The next prime is 63890650771. The reversal of 63890650756 is 65705609836.

The square root of 63890650756 is 252766.

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

63890650756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2307265156 + 61583385600 = 48034^2 + 248160^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63890650697 and 63890650706.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23758660 + ... + 23761348.

Almost surely, 2^63890650756 is an apocalyptic number.

63890650756 is the 252766-th square number.

It is an amenable number.

63890650756 is a deficient number, since it is larger than the sum of its proper divisors (50390009633).

63890650756 is an frugal number, since it uses more digits than its factorization.

63890650756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 63890650756 in words is "sixty-three billion, eight hundred ninety million, six hundred fifty thousand, seven hundred fifty-six".