63280775880 has 768 divisors, whose sum is σ = 257370048000. Its totient is φ = 13537456128.

The previous prime is 63280775861. The next prime is 63280775903. The reversal of 63280775880 is 8857708236.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 235244386 + ... + 235244654.

It is an arithmetic number, because the mean of its divisors is an integer number (335117250).

Almost surely, 2^63280775880 is an apocalyptic number.

63280775880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63280775880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128685024000).

63280775880 is an abundant number, since it is smaller than the sum of its proper divisors (194089272120).

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

63280775880 is a wasteful number, since it uses less digits than its factorization.

63280775880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

It can be divided in two parts, 63280 and 775880, that added together give a triangular number (839160 = T₁₂₉₅).

The spelling of 63280775880 in words is "sixty-three billion, two hundred eighty million, seven hundred seventy-five thousand, eight hundred eighty".