28087206957876 has 192 divisors, whose sum is σ = 76027576375296. Its totient is φ = 7985846668800.

The previous prime is 28087206957871. The next prime is 28087206957889. The reversal of 28087206957876 is 67875960278082.

It is a junction number, because it is equal to n+sod(n) for n = 28087206957798 and 28087206957807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28087206957871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 842658531 + ... + 842691861.

It is an arithmetic number, because the mean of its divisors is an integer number (395976960288).

Almost surely, 2^{28087206957876} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28087206957876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38013788187648).

28087206957876 is an abundant number, since it is smaller than the sum of its proper divisors (47940369417420).

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

28087206957876 is a wasteful number, since it uses less digits than its factorization.

28087206957876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38662 (or 38660 counting only the distinct ones).

The product of its (nonzero) digits is 1137991680, while the sum is 75.

The spelling of 28087206957876 in words is "twenty-eight trillion, eighty-seven billion, two hundred six million, nine hundred fifty-seven thousand, eight hundred seventy-six".