28428607754 has 4 divisors (see below), whose sum is σ = 42642911634. Its totient is φ = 14214303876.

The previous prime is 28428607723. The next prime is 28428607769. The reversal of 28428607754 is 45770682482.

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., 18995730625 + 9432877129 = 137825^2 + 97123^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28428607696 and 28428607705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7107151937 + ... + 7107151940.

Almost surely, 2^28428607754 is an apocalyptic number.

28428607754 is a deficient number, since it is larger than the sum of its proper divisors (14214303880).

28428607754 is a wasteful number, since it uses less digits than its factorization.

28428607754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14214303879.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 28428607754 in words is "twenty-eight billion, four hundred twenty-eight million, six hundred seven thousand, seven hundred fifty-four".