13858128647 has 32 divisors (see below), whose sum is σ = 15820738560. Its totient is φ = 12029482080.

The previous prime is 13858128631. The next prime is 13858128673. The reversal of 13858128647 is 74682185831.

It is not a de Polignac number, because 13858128647 - 2⁴ = 13858128631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13858128607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3704504 + ... + 3708242.

It is an arithmetic number, because the mean of its divisors is an integer number (494398080).

Almost surely, 2^13858128647 is an apocalyptic number.

13858128647 is a deficient number, since it is larger than the sum of its proper divisors (1962609913).

13858128647 is a wasteful number, since it uses less digits than its factorization.

13858128647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

The product of its digits is 2580480, while the sum is 53.

The spelling of 13858128647 in words is "thirteen billion, eight hundred fifty-eight million, one hundred twenty-eight thousand, six hundred forty-seven".