12087530646 has 16 divisors (see below), whose sum is σ = 24424289904. Its totient is φ = 3987638784.

The previous prime is 12087530627. The next prime is 12087530647. The reversal of 12087530646 is 64603578021.

It is a super-2 number, since 2×12087530646² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12087530598 and 12087530607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12087530647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10383895 + ... + 10385058.

It is an arithmetic number, because the mean of its divisors is an integer number (1526518119).

Almost surely, 2^12087530646 is an apocalyptic number.

12087530646 is an abundant number, since it is smaller than the sum of its proper divisors (12336759258).

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

12087530646 is a wasteful number, since it uses less digits than its factorization.

12087530646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20769055.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 12087530646 in words is "twelve billion, eighty-seven million, five hundred thirty thousand, six hundred forty-six".