12612290328 has 80 divisors (see below), whose sum is σ = 38537575560. Its totient is φ = 3821904000.

The previous prime is 12612290309. The next prime is 12612290329. The reversal of 12612290328 is 82309221621.

It is a happy number.

12612290328 is a `hidden beast` number, since 1 + 2 + 612 + 2 + 9 + 0 + 32 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12612290292 and 12612290301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612290329) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 877573 + ... + 891828.

Almost surely, 2^12612290328 is an apocalyptic number.

12612290328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12612290328 is an abundant number, since it is smaller than the sum of its proper divisors (25925285232).

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

12612290328 is a wasteful number, since it uses less digits than its factorization.

12612290328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769430 (or 1769417 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 12612290328 in words is "twelve billion, six hundred twelve million, two hundred ninety thousand, three hundred twenty-eight".