13455681738 has 32 divisors (see below), whose sum is σ = 27718051200. Its totient is φ = 4351475520.

The previous prime is 13455681691. The next prime is 13455681739. The reversal of 13455681738 is 83718655431.

It is not an unprimeable number, because it can be changed into a prime (13455681739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9358 + ... + 164313.

It is an arithmetic number, because the mean of its divisors is an integer number (866189100).

Almost surely, 2^13455681738 is an apocalyptic number.

13455681738 is an abundant number, since it is smaller than the sum of its proper divisors (14262369462).

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

13455681738 is a wasteful number, since it uses less digits than its factorization.

13455681738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174062.

The product of its digits is 2419200, while the sum is 51.

The spelling of 13455681738 in words is "thirteen billion, four hundred fifty-five million, six hundred eighty-one thousand, seven hundred thirty-eight".