63780407400 has 48 divisors (see below), whose sum is σ = 197719264800. Its totient is φ = 17008108480.

The previous prime is 63780407377. The next prime is 63780407417. The reversal of 63780407400 is 470408736.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53149740 + ... + 53150939.

It is an arithmetic number, because the mean of its divisors is an integer number (4119151350).

Almost surely, 2^63780407400 is an apocalyptic number.

63780407400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63780407400 is an abundant number, since it is smaller than the sum of its proper divisors (133938857400).

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

63780407400 is a wasteful number, since it uses less digits than its factorization.

63780407400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106300698 (or 106300689 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 63780407400 in words is "sixty-three billion, seven hundred eighty million, four hundred seven thousand, four hundred".