63777480 has 64 divisors (see below), whose sum is σ = 206055360. Its totient is φ = 15698688.

The previous prime is 63777451. The next prime is 63777491. The reversal of 63777480 is 8477736.

63777480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18882 + ... + 22001.

It is an arithmetic number, because the mean of its divisors is an integer number (3219615).

Almost surely, 2^63777480 is an apocalyptic number.

63777480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63777480 is an abundant number, since it is smaller than the sum of its proper divisors (142277880).

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

63777480 is a wasteful number, since it uses less digits than its factorization.

63777480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40910 (or 40906 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 63777480 is about 7986.0803902791. The cubic root of 63777480 is about 399.5358783527.

The spelling of 63777480 in words is "sixty-three million, seven hundred seventy-seven thousand, four hundred eighty".