28578651249932 has 48 divisors (see below), whose sum is σ = 57330996410688. Its totient is φ = 12210778460160.

The previous prime is 28578651249919. The next prime is 28578651249937. The reversal of 28578651249932 is 23994215687582.

It is a super-3 number, since 3×28578651249932³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28578651249937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142166132 + ... + 142367012.

It is an arithmetic number, because the mean of its divisors is an integer number (1194395758556).

Almost surely, 2^{28578651249932} is an apocalyptic number.

It is an amenable number.

28578651249932 is an abundant number, since it is smaller than the sum of its proper divisors (28752345160756).

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

28578651249932 is a wasteful number, since it uses less digits than its factorization.

28578651249932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216306 (or 216304 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 71.

The spelling of 28578651249932 in words is "twenty-eight trillion, five hundred seventy-eight billion, six hundred fifty-one million, two hundred forty-nine thousand, nine hundred thirty-two".