13455405444 has 48 divisors (see below), whose sum is σ = 35281072512. Its totient is φ = 3960118272.

The previous prime is 13455405409. The next prime is 13455405569. The reversal of 13455405444 is 44450455431.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1871469 + ... + 1878644.

It is an arithmetic number, because the mean of its divisors is an integer number (735022344).

Almost surely, 2^13455405444 is an apocalyptic number.

It is an amenable number.

13455405444 is an abundant number, since it is smaller than the sum of its proper divisors (21825667068).

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

13455405444 is a wasteful number, since it uses less digits than its factorization.

13455405444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750156 (or 3750154 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

The spelling of 13455405444 in words is "thirteen billion, four hundred fifty-five million, four hundred five thousand, four hundred forty-four".