28612854396 has 216 divisors, whose sum is σ = 87477966576. Its totient is φ = 8153913600.

The previous prime is 28612854383. The next prime is 28612854419. The reversal of 28612854396 is 69345821682.

28612854396 is a `hidden beast` number, since 2 + 8 + 6 + 1 + 2 + 8 + 543 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 33386800 + ... + 33387656.

It is an arithmetic number, because the mean of its divisors is an integer number (404990586).

Almost surely, 2^28612854396 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 28612854396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43738983288).

28612854396 is an abundant number, since it is smaller than the sum of its proper divisors (58865112180).

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

28612854396 is a wasteful number, since it uses less digits than its factorization.

28612854396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591 (or 1570 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 28612854396 in words is "twenty-eight billion, six hundred twelve million, eight hundred fifty-four thousand, three hundred ninety-six".