28201539432 has 32 divisors (see below), whose sum is σ = 76913290080. Its totient is φ = 8545920960.

The previous prime is 28201539419. The next prime is 28201539439. The reversal of 28201539432 is 23493510282.

It is not an unprimeable number, because it can be changed into a prime (28201539439) 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 7 ways as a sum of consecutive naturals, for example, 53411743 + ... + 53412270.

It is an arithmetic number, because the mean of its divisors is an integer number (2403540315).

Almost surely, 2^28201539432 is an apocalyptic number.

28201539432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28201539432 is an abundant number, since it is smaller than the sum of its proper divisors (48711750648).

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

28201539432 is a wasteful number, since it uses less digits than its factorization.

28201539432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106824033 (or 106824029 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 28201539432 in words is "twenty-eight billion, two hundred one million, five hundred thirty-nine thousand, four hundred thirty-two".