28050554985 has 8 divisors (see below), whose sum is σ = 44880888000. Its totient is φ = 14960295984.

The previous prime is 28050554947. The next prime is 28050554989. The reversal of 28050554985 is 58945505082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28050554985 - 2¹⁸ = 28050292841 is a prime.

It is a super-3 number, since 3×28050554985³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28050554989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935018485 + ... + 935018514.

It is an arithmetic number, because the mean of its divisors is an integer number (5610111000).

Almost surely, 2^28050554985 is an apocalyptic number.

It is an amenable number.

28050554985 is a deficient number, since it is larger than the sum of its proper divisors (16830333015).

28050554985 is a wasteful number, since it uses less digits than its factorization.

28050554985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870037007.

The product of its (nonzero) digits is 2880000, while the sum is 51.

The spelling of 28050554985 in words is "twenty-eight billion, fifty million, five hundred fifty-four thousand, nine hundred eighty-five".