13426506435508 has 12 divisors (see below), whose sum is σ = 23498272548772. Its totient is φ = 6712714278720.

The previous prime is 13426506435499. The next prime is 13426506435541. The reversal of 13426506435508 is 80553460562431.

It can be written as a sum of positive squares in 2 ways, for example, as 12315902397604 + 1110604037904 = 3509402^2 + 1053852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134678703 + ... + 134778358.

Almost surely, 2^{13426506435508} is an apocalyptic number.

It is an amenable number.

13426506435508 is a deficient number, since it is larger than the sum of its proper divisors (10071766113264).

13426506435508 is a wasteful number, since it uses less digits than its factorization.

13426506435508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269469522 (or 269469520 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 52.

Adding to 13426506435508 its reverse (80553460562431), we get a palindrome (93979966997939).

The spelling of 13426506435508 in words is "thirteen trillion, four hundred twenty-six billion, five hundred six million, four hundred thirty-five thousand, five hundred eight".