12146890528 has 48 divisors (see below), whose sum is σ = 24178452480. Its totient is φ = 6006491136.

The previous prime is 12146890523. The next prime is 12146890529. The reversal of 12146890528 is 82509864121.

It is a super-2 number, since 2×12146890528² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12146890523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3060001 + ... + 3063967.

It is an arithmetic number, because the mean of its divisors is an integer number (503717760).

Almost surely, 2^12146890528 is an apocalyptic number.

It is an amenable number.

12146890528 is a deficient number, since it is larger than the sum of its proper divisors (12031561952).

12146890528 is a wasteful number, since it uses less digits than its factorization.

12146890528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009 (or 5001 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 12146890528 in words is "twelve billion, one hundred forty-six million, eight hundred ninety thousand, five hundred twenty-eight".