13458839121 has 64 divisors (see below), whose sum is σ = 24595415040. Its totient is φ = 7083236160.

The previous prime is 13458839099. The next prime is 13458839153. The reversal of 13458839121 is 12193885431.

13458839121 is a `hidden beast` number, since 1 + 34 + 588 + 39 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 13458839121 - 2¹⁸ = 13458576977 is a prime.

It is a super-2 number, since 2×13458839121² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13458839161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1131676 + ... + 1143506.

It is an arithmetic number, because the mean of its divisors is an integer number (384303360).

Almost surely, 2^13458839121 is an apocalyptic number.

It is an amenable number.

13458839121 is a deficient number, since it is larger than the sum of its proper divisors (11136575919).

13458839121 is a wasteful number, since it uses less digits than its factorization.

13458839121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323 (or 12317 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 13458839121 in words is "thirteen billion, four hundred fifty-eight million, eight hundred thirty-nine thousand, one hundred twenty-one".