28520114474 has 4 divisors (see below), whose sum is σ = 42780171714. Its totient is φ = 14260057236.

The previous prime is 28520114473. The next prime is 28520114477. The reversal of 28520114474 is 47441102582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17296195225 + 11223919249 = 131515^2 + 105943^2 .

It is a super-2 number, since 2×28520114474² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28520114473) by changing a digit.

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 as a sum of consecutive naturals, namely, 7130028617 + ... + 7130028620.

Almost surely, 2^28520114474 is an apocalyptic number.

28520114474 is a deficient number, since it is larger than the sum of its proper divisors (14260057240).

28520114474 is a wasteful number, since it uses less digits than its factorization.

28520114474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14260057239.

The product of its (nonzero) digits is 71680, while the sum is 38.

The spelling of 28520114474 in words is "twenty-eight billion, five hundred twenty million, one hundred fourteen thousand, four hundred seventy-four".