63528700180 has 144 divisors (see below), whose sum is σ = 149440470480. Its totient is φ = 22664519680.

The previous prime is 63528700153. The next prime is 63528700199. The reversal of 63528700180 is 8100782536.

It can be written as a sum of positive squares in 8 ways, for example, as 11921582596 + 51607117584 = 109186^2 + 227172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29505984 + ... + 29508136.

It is an arithmetic number, because the mean of its divisors is an integer number (1037781045).

Almost surely, 2^63528700180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63528700180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74720235240).

63528700180 is an abundant number, since it is smaller than the sum of its proper divisors (85911770300).

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

63528700180 is a wasteful number, since it uses less digits than its factorization.

63528700180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2397 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 63528700180 in words is "sixty-three billion, five hundred twenty-eight million, seven hundred thousand, one hundred eighty".