28032158540 has 12 divisors (see below), whose sum is σ = 58867532976. Its totient is φ = 11212863408.

The previous prime is 28032158519. The next prime is 28032158593. The reversal of 28032158540 is 4585123082.

It is a junction number, because it is equal to n+sod(n) for n = 28032158494 and 28032158503.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 700803944 + ... + 700803983.

It is an arithmetic number, because the mean of its divisors is an integer number (4905627748).

Almost surely, 2^28032158540 is an apocalyptic number.

28032158540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28032158540 is an abundant number, since it is smaller than the sum of its proper divisors (30835374436).

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

28032158540 is a wasteful number, since it uses less digits than its factorization.

28032158540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401607936 (or 1401607934 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 28032158540 in words is "twenty-eight billion, thirty-two million, one hundred fifty-eight thousand, five hundred forty".