12738548032 has 56 divisors (see below), whose sum is σ = 29478833600. Its totient is φ = 5459368320.

The previous prime is 12738548023. The next prime is 12738548041. The reversal of 12738548032 is 23084583721.

It is an interprime number because it is at equal distance from previous prime (12738548023) and next prime (12738548041).

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 12738548032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268194 + ... + 312097.

Almost surely, 2^12738548032 is an apocalyptic number.

It is an amenable number.

12738548032 is an abundant number, since it is smaller than the sum of its proper divisors (16740285568).

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

12738548032 is an frugal number, since it uses more digits than its factorization.

12738548032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580324 (or 580300 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 12738548032 in words is "twelve billion, seven hundred thirty-eight million, five hundred forty-eight thousand, thirty-two".