11997232624 has 80 divisors (see below), whose sum is σ = 27200481280. Its totient is φ = 5076483840.

The previous prime is 11997232619. The next prime is 11997232733. The reversal of 11997232624 is 42623279911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73549 + ... + 171475.

It is an arithmetic number, because the mean of its divisors is an integer number (340006016).

Almost surely, 2^11997232624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11997232624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13600240640).

11997232624 is an abundant number, since it is smaller than the sum of its proper divisors (15203248656).

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

11997232624 is a wasteful number, since it uses less digits than its factorization.

11997232624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97998 (or 97992 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The spelling of 11997232624 in words is "eleven billion, nine hundred ninety-seven million, two hundred thirty-two thousand, six hundred twenty-four".