12073838520 has 128 divisors (see below), whose sum is σ = 37331461440. Its totient is φ = 3121643520.

The previous prime is 12073838509. The next prime is 12073838531. The reversal of 12073838520 is 2583837021.

It is an interprime number because it is at equal distance from previous prime (12073838509) and next prime (12073838531).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1296280 + ... + 1305560.

Almost surely, 2^12073838520 is an apocalyptic number.

12073838520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12073838520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18665730720).

12073838520 is an abundant number, since it is smaller than the sum of its proper divisors (25257622920).

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

12073838520 is a wasteful number, since it uses less digits than its factorization.

12073838520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625 (or 9621 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 12073838520 in words is "twelve billion, seventy-three million, eight hundred thirty-eight thousand, five hundred twenty".