13426657044 has 12 divisors (see below), whose sum is σ = 31328866464. Its totient is φ = 4475552344.

The previous prime is 13426657033. The next prime is 13426657073. The reversal of 13426657044 is 44075662431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13426656987 and 13426657005.

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, 559444032 + ... + 559444055.

It is an arithmetic number, because the mean of its divisors is an integer number (2610738872).

Almost surely, 2^13426657044 is an apocalyptic number.

It is an amenable number.

13426657044 is an abundant number, since it is smaller than the sum of its proper divisors (17902209420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13426657044 is a wasteful number, since it uses less digits than its factorization.

13426657044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118888094 (or 1118888092 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 13426657044 in words is "thirteen billion, four hundred twenty-six million, six hundred fifty-seven thousand, forty-four".