12026517830 has 32 divisors (see below), whose sum is σ = 22021269120. Its totient is φ = 4727733120.

The previous prime is 12026517821. The next prime is 12026517847. The reversal of 12026517830 is 3871562021.

It is a happy number.

It is a super-2 number, since 2×12026517830² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771251 + ... + 786689.

It is an arithmetic number, because the mean of its divisors is an integer number (688164660).

Almost surely, 2^12026517830 is an apocalyptic number.

12026517830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12026517830 is a deficient number, since it is larger than the sum of its proper divisors (9994751290).

12026517830 is a wasteful number, since it uses less digits than its factorization.

12026517830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16784.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 12026517830 in words is "twelve billion, twenty-six million, five hundred seventeen thousand, eight hundred thirty".