28893253074 has 192 divisors, whose sum is σ = 73269795456. Its totient is φ = 7543259136.

The previous prime is 28893253019. The next prime is 28893253079. The reversal of 28893253074 is 47035239882.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (28893253079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50074674 + ... + 50075250.

It is an arithmetic number, because the mean of its divisors is an integer number (381613518).

Almost surely, 2^28893253074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28893253074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36634897728).

28893253074 is an abundant number, since it is smaller than the sum of its proper divisors (44376542382).

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

28893253074 is a wasteful number, since it uses less digits than its factorization.

28893253074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 28893253074 in words is "twenty-eight billion, eight hundred ninety-three million, two hundred fifty-three thousand, seventy-four".