13455521892 has 18 divisors (see below), whose sum is σ = 34012569318. Its totient is φ = 4485173952.

The previous prime is 13455521851. The next prime is 13455521899. The reversal of 13455521892 is 29812555431.

13455521892 is a `hidden beast` number, since 1 + 3 + 4 + 5 + 552 + 1 + 8 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12833717796 + 621804096 = 113286^2 + 24936^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (13455521899) 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 5 ways as a sum of consecutive naturals, for example, 186882213 + ... + 186882284.

Almost surely, 2^13455521892 is an apocalyptic number.

13455521892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13455521892 is an abundant number, since it is smaller than the sum of its proper divisors (20557047426).

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

13455521892 is a wasteful number, since it uses less digits than its factorization.

13455521892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373764507 (or 373764502 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The spelling of 13455521892 in words is "thirteen billion, four hundred fifty-five million, five hundred twenty-one thousand, eight hundred ninety-two".