28528113754 has 16 divisors (see below), whose sum is σ = 50482930176. Its totient is φ = 11831936400.

The previous prime is 28528113751. The next prime is 28528113821. The reversal of 28528113754 is 45731182582.

It is a happy number.

It is a super-2 number, since 2×28528113754² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28528113751) 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, 32866057 + ... + 32866924.

It is an arithmetic number, because the mean of its divisors is an integer number (3155183136).

Almost surely, 2^28528113754 is an apocalyptic number.

28528113754 is a deficient number, since it is larger than the sum of its proper divisors (21954816422).

28528113754 is a wasteful number, since it uses less digits than its factorization.

28528113754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65733021.

The product of its digits is 537600, while the sum is 46.

The spelling of 28528113754 in words is "twenty-eight billion, five hundred twenty-eight million, one hundred thirteen thousand, seven hundred fifty-four".