63906828804 has 243 divisors, whose sum is σ = 203923995093. Its totient is φ = 16818145344.

The previous prime is 63906828787. The next prime is 63906828809. The reversal of 63906828804 is 40882860936.

The square root of 63906828804 is 252798.

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

It can be written as a sum of positive squares in only one way, i.e., 9453672900 + 54453155904 = 97230^2 + 233352^2 .

It is not an unprimeable number, because it can be changed into a prime (63906828809) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 138027477 + ... + 138027939.

Almost surely, 2^63906828804 is an apocalyptic number.

63906828804 is the 252798-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63906828804

63906828804 is an abundant number, since it is smaller than the sum of its proper divisors (140017166289).

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

63906828804 is a wasteful number, since it uses less digits than its factorization.

63906828804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 63906828804 in words is "sixty-three billion, nine hundred six million, eight hundred twenty-eight thousand, eight hundred four".