63528280464 has 80 divisors (see below), whose sum is σ = 179067896064. Its totient is φ = 19247376000.

The previous prime is 63528280463. The next prime is 63528280499. The reversal of 63528280464 is 46408282536.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (63528280463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4514239 + ... + 4528289.

Almost surely, 2^63528280464 is an apocalyptic number.

It is an amenable number.

63528280464 is an abundant number, since it is smaller than the sum of its proper divisors (115539615600).

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

63528280464 is a wasteful number, since it uses less digits than its factorization.

63528280464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22636 (or 22630 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 63528280464 in words is "sixty-three billion, five hundred twenty-eight million, two hundred eighty thousand, four hundred sixty-four".