13428857134877 has 4 divisors (see below), whose sum is σ = 13467335235900. Its totient is φ = 13390379033856.

The previous prime is 13428857134853. The next prime is 13428857134883. The reversal of 13428857134877 is 77843175882431.

13428857134877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7377030812761 + 6051826322116 = 2716069^2 + 2460046^2 .

It is a cyclic number.

It is not a de Polignac number, because 13428857134877 - 2⁸ = 13428857134621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428857134817) 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, 19239049988 + ... + 19239050685.

It is an arithmetic number, because the mean of its divisors is an integer number (3366833808975).

Almost surely, 2^{13428857134877} is an apocalyptic number.

It is an amenable number.

13428857134877 is a deficient number, since it is larger than the sum of its proper divisors (38478101023).

13428857134877 is an equidigital number, since it uses as much as digits as its factorization.

13428857134877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38478101022.

The product of its digits is 252887040, while the sum is 68.

The spelling of 13428857134877 in words is "thirteen trillion, four hundred twenty-eight billion, eight hundred fifty-seven million, one hundred thirty-four thousand, eight hundred seventy-seven".