13405422402544 has 20 divisors (see below), whose sum is σ = 25973408258424. Its totient is φ = 6702607368128.

The previous prime is 13405422402517. The next prime is 13405422402551. The reversal of 13405422402544 is 44520422450431.

It is a junction number, because it is equal to n+sod(n) for n = 13405422402497 and 13405422402506.

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, 5419102 + ... + 7495165.

Almost surely, 2^{13405422402544} is an apocalyptic number.

It is an amenable number.

13405422402544 is a deficient number, since it is larger than the sum of its proper divisors (12567985855880).

13405422402544 is a wasteful number, since it uses less digits than its factorization.

13405422402544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12979152 (or 12979146 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 13405422402544 its reverse (44520422450431), we get a palindrome (57925844852975).

The spelling of 13405422402544 in words is "thirteen trillion, four hundred five billion, four hundred twenty-two million, four hundred two thousand, five hundred forty-four".