28054654992 has 320 divisors, whose sum is σ = 99353640960. Its totient is φ = 7380896256.

The previous prime is 28054654981. The next prime is 28054655009. The reversal of 28054654992 is 29945645082.

28054654992 is a `hidden beast` number, since 2 + 8 + 0 + 5 + 4 + 6 + 549 + 92 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25434313 + ... + 25435415.

It is an arithmetic number, because the mean of its divisors is an integer number (310480128).

Almost surely, 2^28054654992 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 28054654992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49676820480).

28054654992 is an abundant number, since it is smaller than the sum of its proper divisors (71298985968).

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

28054654992 is a wasteful number, since it uses less digits than its factorization.

28054654992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 28054654992 in words is "twenty-eight billion, fifty-four million, six hundred fifty-four thousand, nine hundred ninety-two".