28452691052 has 24 divisors (see below), whose sum is σ = 51972732000. Its totient is φ = 13603711616.

The previous prime is 28452691037. The next prime is 28452691061. The reversal of 28452691052 is 25019625482.

It is a junction number, because it is equal to n+sod(n) for n = 28452690994 and 28452691012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272474 + ... + 362142.

It is an arithmetic number, because the mean of its divisors is an integer number (2165530500).

Almost surely, 2^28452691052 is an apocalyptic number.

It is an amenable number.

28452691052 is a deficient number, since it is larger than the sum of its proper divisors (23520040948).

28452691052 is a wasteful number, since it uses less digits than its factorization.

28452691052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93145 (or 93143 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 28452691052 in words is "twenty-eight billion, four hundred fifty-two million, six hundred ninety-one thousand, fifty-two".