13454043345 has 24 divisors (see below), whose sum is σ = 23350727400. Its totient is φ = 7166140416.

The previous prime is 13454043331. The next prime is 13454043397. The reversal of 13454043345 is 54334045431.

13454043345 is a `hidden beast` number, since 1 + 34 + 540 + 43 + 3 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3261323664 + 10192719681 = 57108^2 + 100959^2 .

It is not a de Polignac number, because 13454043345 - 2³¹ = 11306559697 is a prime.

It is a super-2 number, since 2×13454043345² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159790 + ... + 228999.

It is an arithmetic number, because the mean of its divisors is an integer number (972946975).

Almost surely, 2^13454043345 is an apocalyptic number.

13454043345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13454043345 is a deficient number, since it is larger than the sum of its proper divisors (9896684055).

13454043345 is a wasteful number, since it uses less digits than its factorization.

13454043345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389569 (or 389566 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 13454043345 its reverse (54334045431), we get a palindrome (67788088776).

The spelling of 13454043345 in words is "thirteen billion, four hundred fifty-four million, forty-three thousand, three hundred forty-five".