12728596050 has 72 divisors (see below), whose sum is σ = 34256463696. Its totient is φ = 3388439520.

The previous prime is 12728596021. The next prime is 12728596061. The reversal of 12728596050 is 5069582721.

12728596050 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 8 + 596 + 0 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 12728595987 and 12728596005.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 240057 + ... + 288243.

It is an arithmetic number, because the mean of its divisors is an integer number (475784218).

Almost surely, 2^12728596050 is an apocalyptic number.

12728596050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12728596050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17128231848).

12728596050 is an abundant number, since it is smaller than the sum of its proper divisors (21527867646).

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

12728596050 is a wasteful number, since it uses less digits than its factorization.

12728596050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48792 (or 48784 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 12728596050 in words is "twelve billion, seven hundred twenty-eight million, five hundred ninety-six thousand, fifty".