63430277328 has 180 divisors, whose sum is σ = 206600347044. Its totient is φ = 18090547200.

The previous prime is 63430277321. The next prime is 63430277329. The reversal of 63430277328 is 82377203436.

63430277328 is a `hidden beast` number, since 6 + 343 + 0 + 277 + 32 + 8 = 666.

63430277328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41807163024 + 21623114304 = 204468^2 + 147048^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63430277321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 189138 + ... + 403278.

Almost surely, 2^63430277328 is an apocalyptic number.

63430277328 is a gapful number since it is divisible by the number (68) 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 63430277328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103300173522).

63430277328 is an abundant number, since it is smaller than the sum of its proper divisors (143170069716).

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

63430277328 is a wasteful number, since it uses less digits than its factorization.

63430277328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214194 (or 214174 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 45.

The spelling of 63430277328 in words is "sixty-three billion, four hundred thirty million, two hundred seventy-seven thousand, three hundred twenty-eight".