12731652038480 has 40 divisors (see below), whose sum is σ = 29601244084392. Its totient is φ = 5092634476544.

The previous prime is 12731652038449. The next prime is 12731652038489. The reversal of 12731652038480 is 8483025613721.

It can be written as a sum of positive squares in 4 ways, for example, as 8821351445776 + 3910300592704 = 2970076^2 + 1977448^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731652038489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24578312 + ... + 25090968.

Almost surely, 2^{12731652038480} is an apocalyptic number.

12731652038480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12731652038480 is an abundant number, since it is smaller than the sum of its proper divisors (16869592045912).

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

12731652038480 is a wasteful number, since it uses less digits than its factorization.

12731652038480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823103 (or 823097 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 12731652038480 in words is "twelve trillion, seven hundred thirty-one billion, six hundred fifty-two million, thirty-eight thousand, four hundred eighty".