12128735358 has 12 divisors (see below), whose sum is σ = 26278926648. Its totient is φ = 4042911780.

The previous prime is 12128735327. The next prime is 12128735363. The reversal of 12128735358 is 85353782121.

12128735358 is a `hidden beast` number, since 1 + 21 + 28 + 73 + 535 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336909298 + ... + 336909333.

It is an arithmetic number, because the mean of its divisors is an integer number (2189910554).

Almost surely, 2^12128735358 is an apocalyptic number.

12128735358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12128735358 is an abundant number, since it is smaller than the sum of its proper divisors (14150191290).

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

12128735358 is a wasteful number, since it uses less digits than its factorization.

12128735358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673818639 (or 673818636 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The spelling of 12128735358 in words is "twelve billion, one hundred twenty-eight million, seven hundred thirty-five thousand, three hundred fifty-eight".