13398584381 has 64 divisors (see below), whose sum is σ = 17740477440. Its totient is φ = 9829416960.

The previous prime is 13398584371. The next prime is 13398584383. The reversal of 13398584381 is 18348589331.

It is a cyclic number.

It is not a de Polignac number, because 13398584381 - 2⁶ = 13398584317 is a prime.

It is a super-2 number, since 2×13398584381² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13398584383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16561505 + ... + 16562313.

It is an arithmetic number, because the mean of its divisors is an integer number (277194960).

Almost surely, 2^13398584381 is an apocalyptic number.

It is an amenable number.

13398584381 is a deficient number, since it is larger than the sum of its proper divisors (4341893059).

13398584381 is a wasteful number, since it uses less digits than its factorization.

13398584381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its digits is 2488320, while the sum is 53.

The spelling of 13398584381 in words is "thirteen billion, three hundred ninety-eight million, five hundred eighty-four thousand, three hundred eighty-one".