63979128280 has 32 divisors (see below), whose sum is σ = 143981342640. Its totient is φ = 25586619520.

The previous prime is 63979128277. The next prime is 63979128289. The reversal of 63979128280 is 8282197936.

63979128280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63979128289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52182 + ... + 361498.

Almost surely, 2^63979128280 is an apocalyptic number.

It is an amenable number.

63979128280 is an abundant number, since it is smaller than the sum of its proper divisors (80002214360).

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

63979128280 is a wasteful number, since it uses less digits than its factorization.

63979128280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314499 (or 314495 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 63979128280 in words is "sixty-three billion, nine hundred seventy-nine million, one hundred twenty-eight thousand, two hundred eighty".