28561199933952 has 200 divisors, whose sum is σ = 97425899673696. Its totient is φ = 8160342755328.

The previous prime is 28561199933951. The next prime is 28561199934023. The reversal of 28561199933952 is 25933999116582.

28561199933952 is a `hidden beast` number, since 2 + 8 + 5 + 61 + 1 + 99 + 93 + 395 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (28561199933951) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48901578 + ... + 49482185.

Almost surely, 2^{28561199933952} is an apocalyptic number.

It is an amenable number.

28561199933952 is an abundant number, since it is smaller than the sum of its proper divisors (68864699739744).

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

28561199933952 is an frugal number, since it uses more digits than its factorization.

28561199933952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98383800 (or 98383775 counting only the distinct ones).

The product of its digits is 283435200, while the sum is 72.

The spelling of 28561199933952 in words is "twenty-eight trillion, five hundred sixty-one billion, one hundred ninety-nine million, nine hundred thirty-three thousand, nine hundred fifty-two".