28152063258772 has 12 divisors (see below), whose sum is σ = 49774008752020. Its totient is φ = 13930917901056.

The previous prime is 28152063258749. The next prime is 28152063258791. The reversal of 28152063258772 is 27785236025182.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5072071519876 + 23079991738896 = 2252126^2 + 4804164^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36278431647 + ... + 36278432422.

Almost surely, 2^{28152063258772} is an apocalyptic number.

It is an amenable number.

28152063258772 is a deficient number, since it is larger than the sum of its proper divisors (21621945493248).

28152063258772 is a wasteful number, since it uses less digits than its factorization.

28152063258772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72556864170 (or 72556864168 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 28152063258772 in words is "twenty-eight trillion, one hundred fifty-two billion, sixty-three million, two hundred fifty-eight thousand, seven hundred seventy-two".