13405535254544 has 20 divisors (see below), whose sum is σ = 26525846356224. Its totient is φ = 6560155549728.

The previous prime is 13405535254499. The next prime is 13405535254649. The reversal of 13405535254544 is 44545253550431.

It is a junction number, because it is equal to n+sod(n) for n = 13405535254492 and 13405535254501.

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, 8913254072 + ... + 8913255575.

Almost surely, 2^{13405535254544} is an apocalyptic number.

It is an amenable number.

13405535254544 is a deficient number, since it is larger than the sum of its proper divisors (13120311101680).

13405535254544 is a wasteful number, since it uses less digits than its factorization.

13405535254544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17826509702 (or 17826509696 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 50.

The spelling of 13405535254544 in words is "thirteen trillion, four hundred five billion, five hundred thirty-five million, two hundred fifty-four thousand, five hundred forty-four".