28033539072 has 352 divisors, whose sum is σ = 96187121664. Its totient is φ = 7044710400.

The previous prime is 28033539071. The next prime is 28033539073. The reversal of 28033539072 is 27093533082.

It is an interprime number because it is at equal distance from previous prime (28033539071) and next prime (28033539073).

It is a tau number, because it is divible by the number of its divisors (352).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28033539071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7330953 + ... + 7334775.

Almost surely, 2^28033539072 is an apocalyptic number.

28033539072 is a gapful number since it is divisible by the number (22) 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 28033539072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48093560832).

28033539072 is an abundant number, since it is smaller than the sum of its proper divisors (68153582592).

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

28033539072 is a wasteful number, since it uses less digits than its factorization.

28033539072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895 (or 3877 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 28033539072 in words is "twenty-eight billion, thirty-three million, five hundred thirty-nine thousand, seventy-two".