28143037912 has 32 divisors (see below), whose sum is σ = 60068148480. Its totient is φ = 12236102560.

The previous prime is 28143037883. The next prime is 28143037921. The reversal of 28143037912 is 21973034182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6950308 + ... + 6954355.

It is an arithmetic number, because the mean of its divisors is an integer number (1877129640).

Almost surely, 2^28143037912 is an apocalyptic number.

28143037912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28143037912 is an abundant number, since it is smaller than the sum of its proper divisors (31925110568).

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

28143037912 is a wasteful number, since it uses less digits than its factorization.

28143037912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904703 (or 13904699 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 28143037912 in words is "twenty-eight billion, one hundred forty-three million, thirty-seven thousand, nine hundred twelve".