13398531019 has 8 divisors (see below), whose sum is σ = 13893642000. Its totient is φ = 12905626272.

The previous prime is 13398530911. The next prime is 13398531037. The reversal of 13398531019 is 91013589331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13398531019 is a prime.

It is a super-2 number, since 2×13398531019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13398531919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539184 + ... + 563485.

It is an arithmetic number, because the mean of its divisors is an integer number (1736705250).

Almost surely, 2^13398531019 is an apocalyptic number.

13398531019 is a deficient number, since it is larger than the sum of its proper divisors (495110981).

13398531019 is a wasteful number, since it uses less digits than its factorization.

13398531019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103117.

The product of its (nonzero) digits is 87480, while the sum is 43.

It can be divided in two parts, 1339 and 8531019, that added together give a palindrome (8532358).

The spelling of 13398531019 in words is "thirteen billion, three hundred ninety-eight million, five hundred thirty-one thousand, nineteen".