28513434152 has 32 divisors (see below), whose sum is σ = 61147336320. Its totient is φ = 12210619200.

The previous prime is 28513434109. The next prime is 28513434179. The reversal of 28513434152 is 25143431582.

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, 122828 + ... + 268539.

It is an arithmetic number, because the mean of its divisors is an integer number (1910854260).

Almost surely, 2^28513434152 is an apocalyptic number.

It is an amenable number.

28513434152 is an abundant number, since it is smaller than the sum of its proper divisors (32633902168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28513434152 is a wasteful number, since it uses less digits than its factorization.

28513434152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392681 (or 392677 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The spelling of 28513434152 in words is "twenty-eight billion, five hundred thirteen million, four hundred thirty-four thousand, one hundred fifty-two".