13143998615 has 32 divisors (see below), whose sum is σ = 17614872576. Its totient is φ = 9333480960.

The previous prime is 13143998597. The next prime is 13143998617. The reversal of 13143998615 is 51689934131.

It is not a de Polignac number, because 13143998615 - 2¹² = 13143994519 is a prime.

It is a super-2 number, since 2×13143998615² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143998617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1113434 + ... + 1125176.

It is an arithmetic number, because the mean of its divisors is an integer number (550464768).

Almost surely, 2^13143998615 is an apocalyptic number.

13143998615 is a deficient number, since it is larger than the sum of its proper divisors (4470873961).

13143998615 is a wasteful number, since it uses less digits than its factorization.

13143998615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12239.

The product of its digits is 699840, while the sum is 50.

The spelling of 13143998615 in words is "thirteen billion, one hundred forty-three million, nine hundred ninety-eight thousand, six hundred fifteen".