63129880 has 32 divisors (see below), whose sum is σ = 154956240. Its totient is φ = 22956160.

The previous prime is 63129853. The next prime is 63129887. The reversal of 63129880 is 8892136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63129887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71299 + ... + 72178.

Almost surely, 2^63129880 is an apocalyptic number.

It is an amenable number.

63129880 is an abundant number, since it is smaller than the sum of its proper divisors (91826360).

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

63129880 is a wasteful number, since it uses less digits than its factorization.

63129880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143499 (or 143495 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 63129880 is about 7945.4313916867. The cubic root of 63129880 is about 398.1789722254.

It can be divided in two parts, 63129 and 880, that added together give a square (64009 = 253²).

The spelling of 63129880 in words is "sixty-three million, one hundred twenty-nine thousand, eight hundred eighty".