28246066621968 has 160 divisors (see below), whose sum is σ = 83535976605312. Its totient is φ = 8147266560000.

The previous prime is 28246066621943. The next prime is 28246066621987. The reversal of 28246066621968 is 86912666064282.

It is a super-2 number, since 2×28246066621968² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28246066621899 and 28246066621908.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2641603 + ... + 7966818.

Almost surely, 2^{28246066621968} is an apocalyptic number.

It is an amenable number.

28246066621968 is an abundant number, since it is smaller than the sum of its proper divisors (55289909983344).

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

28246066621968 is a wasteful number, since it uses less digits than its factorization.

28246066621968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608713 (or 10608707 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 66.

The spelling of 28246066621968 in words is "twenty-eight trillion, two hundred forty-six billion, sixty-six million, six hundred twenty-one thousand, nine hundred sixty-eight".