28047153802752 has 640 divisors, whose sum is σ = 97577347507200. Its totient is φ = 7788643319808.

The previous prime is 28047153802739. The next prime is 28047153802769. The reversal of 28047153802752 is 25720835174082.

28047153802752 is a `hidden beast` number, since 2 + 80 + 4 + 7 + 1 + 538 + 0 + 27 + 5 + 2 = 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 63 ways as a sum of consecutive naturals, for example, 548745774 + ... + 548796882.

It is an arithmetic number, because the mean of its divisors is an integer number (152464605480).

Almost surely, 2^{28047153802752} 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 28047153802752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48788673753600).

28047153802752 is an abundant number, since it is smaller than the sum of its proper divisors (69530193704448).

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

28047153802752 is a wasteful number, since it uses less digits than its factorization.

28047153802752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51303 (or 51281 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 28047153802752 in words is "twenty-eight trillion, forty-seven billion, one hundred fifty-three million, eight hundred two thousand, seven hundred fifty-two".