13545933769 has 3 divisors (see below), whose sum is σ = 13546050157. Its totient is φ = 13545817382.

The previous prime is 13545933683. The next prime is 13545933799. The reversal of 13545933769 is 96733954531.

The square root of 13545933769 is 116387.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 13545933769 - 2⁹ = 13545933257 is a prime.

It is a super-2 number, since 2×13545933769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13545933799) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 58194 + ... + 174580.

Almost surely, 2^13545933769 is an apocalyptic number.

13545933769 is the 116387-th square number.

13545933769 is the 58194-th centered octagonal number.

It is an amenable number.

13545933769 is a deficient number, since it is larger than the sum of its proper divisors (116388).

13545933769 is an frugal number, since it uses more digits than its factorization.

13545933769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232774 (or 116387 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 55.

The spelling of 13545933769 in words is "thirteen billion, five hundred forty-five million, nine hundred thirty-three thousand, seven hundred sixty-nine".