28089181413040 has 160 divisors (see below), whose sum is σ = 72870730617600. Its totient is φ = 9983080565760.

The previous prime is 28089181413023. The next prime is 28089181413049. The reversal of 28089181413040 is 4031418198082.

It is a super-2 number, since 2×28089181413040² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28089181413049) 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, 7418551 + ... + 10545769.

It is an arithmetic number, because the mean of its divisors is an integer number (455442066360).

Almost surely, 2^{28089181413040} is an apocalyptic number.

28089181413040 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 28089181413040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36435365308800).

28089181413040 is an abundant number, since it is smaller than the sum of its proper divisors (44781549204560).

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

28089181413040 is a wasteful number, since it uses less digits than its factorization.

28089181413040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127475 (or 3127469 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 28089181413040 in words is "twenty-eight trillion, eighty-nine billion, one hundred eighty-one million, four hundred thirteen thousand, forty".