12754647131421 has 16 divisors (see below), whose sum is σ = 18314681777280. Its totient is φ = 7848877905600.

The previous prime is 12754647131399. The next prime is 12754647131437. The reversal of 12754647131421 is 12413174645721.

12754647131421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12754647131421 - 2⁶ = 12754647131357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12754647131021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519030 + ... + 5077271.

It is an arithmetic number, because the mean of its divisors is an integer number (1144667611080).

Almost surely, 2^{12754647131421} is an apocalyptic number.

It is an amenable number.

12754647131421 is a deficient number, since it is larger than the sum of its proper divisors (5560034645859).

12754647131421 is a wasteful number, since it uses less digits than its factorization.

12754647131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5654756.

The product of its digits is 1128960, while the sum is 48.

The spelling of 12754647131421 in words is "twelve trillion, seven hundred fifty-four billion, six hundred forty-seven million, one hundred thirty-one thousand, four hundred twenty-one".