28654207471680 has 1344 divisors, whose sum is σ = 115594205184000. Its totient is φ = 5973341552640.

The previous prime is 28654207471651. The next prime is 28654207471727. The reversal of 28654207471680 is 8617470245682.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5513602842 + ... + 5513608038.

Almost surely, 2^{28654207471680} is an apocalyptic number.

28654207471680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28654207471680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57797102592000).

28654207471680 is an abundant number, since it is smaller than the sum of its proper divisors (86939997712320).

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

28654207471680 is a wasteful number, since it uses less digits than its factorization.

28654207471680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480 (or 5463 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 60.

The spelling of 28654207471680 in words is "twenty-eight trillion, six hundred fifty-four billion, two hundred seven million, four hundred seventy-one thousand, six hundred eighty".