28031959618362 has 384 divisors, whose sum is σ = 75551882112000. Its totient is φ = 7674859745280.

The previous prime is 28031959618259. The next prime is 28031959618409. The reversal of 28031959618362 is 26381695913082.

28031959618362 is a `hidden beast` number, since 2 + 8 + 0 + 3 + 1 + 9 + 5 + 9 + 618 + 3 + 6 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 28031959618362.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3256118314 + ... + 3256126922.

It is an arithmetic number, because the mean of its divisors is an integer number (196749693000).

Almost surely, 2^{28031959618362} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28031959618362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37775941056000).

28031959618362 is an abundant number, since it is smaller than the sum of its proper divisors (47519922493638).

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

28031959618362 is a wasteful number, since it uses less digits than its factorization.

28031959618362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9171 (or 9158 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 28031959618362 in words is "twenty-eight trillion, thirty-one billion, nine hundred fifty-nine million, six hundred eighteen thousand, three hundred sixty-two".