28063638982368 has 96 divisors (see below), whose sum is σ = 89293396792320. Its totient is φ = 8504133022080.

The previous prime is 28063638982307. The next prime is 28063638982399. The reversal of 28063638982368 is 86328983636082.

28063638982368 is a `hidden beast` number, since 2 + 8 + 0 + 6 + 3 + 6 + 389 + 8 + 236 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×28063638982368² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 28063638982296 and 28063638982305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476402480 + ... + 1476421487.

It is an arithmetic number, because the mean of its divisors is an integer number (930139549920).

Almost surely, 2^{28063638982368} is an apocalyptic number.

It is an amenable number.

28063638982368 is an abundant number, since it is smaller than the sum of its proper divisors (61229757809952).

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

28063638982368 is a wasteful number, since it uses less digits than its factorization.

28063638982368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952823997 (or 2952823983 counting only the distinct ones).

The product of its (nonzero) digits is 859963392, while the sum is 72.

The spelling of 28063638982368 in words is "twenty-eight trillion, sixty-three billion, six hundred thirty-eight million, nine hundred eighty-two thousand, three hundred sixty-eight".