12738332754 has 128 divisors (see below), whose sum is σ = 34119475200. Its totient is φ = 3441346560.

The previous prime is 12738332743. The next prime is 12738332777. The reversal of 12738332754 is 45723383721.

It is a happy number.

12738332754 is a `hidden beast` number, since 1 + 273 + 8 + 3 + 327 + 54 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4602279 + ... + 4605045.

It is an arithmetic number, because the mean of its divisors is an integer number (266558400).

Almost surely, 2^12738332754 is an apocalyptic number.

12738332754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12738332754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17059737600).

12738332754 is an abundant number, since it is smaller than the sum of its proper divisors (21381142446).

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

12738332754 is a wasteful number, since it uses less digits than its factorization.

12738332754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445 (or 3439 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 12738332754 in words is "twelve billion, seven hundred thirty-eight million, three hundred thirty-two thousand, seven hundred fifty-four".