12054832640 has 40 divisors (see below), whose sum is σ = 28903350960. Its totient is φ = 4821932032.

The previous prime is 12054832597. The next prime is 12054832649. The reversal of 12054832640 is 4623845021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 12054832640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054832649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351900 + ... + 2357019.

It is an arithmetic number, because the mean of its divisors is an integer number (722583774).

Almost surely, 2^12054832640 is an apocalyptic number.

12054832640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12054832640 is an abundant number, since it is smaller than the sum of its proper divisors (16848518320).

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

12054832640 is an frugal number, since it uses more digits than its factorization.

12054832640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708942 (or 4708926 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 12054832640 in words is "twelve billion, fifty-four million, eight hundred thirty-two thousand, six hundred forty".