13645454428 has 12 divisors (see below), whose sum is σ = 25136363560. Its totient is φ = 6463636272.

The previous prime is 13645454393. The next prime is 13645454441. The reversal of 13645454428 is 82445454631.

13645454428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89772651 + ... + 89772802.

Almost surely, 2^13645454428 is an apocalyptic number.

It is an amenable number.

13645454428 is a deficient number, since it is larger than the sum of its proper divisors (11490909132).

13645454428 is a wasteful number, since it uses less digits than its factorization.

13645454428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179545476 (or 179545474 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 46.

It can be divided in two parts, 136 and 45454428, that added together give a square (45454564 = 6742²).

The spelling of 13645454428 in words is "thirteen billion, six hundred forty-five million, four hundred fifty-four thousand, four hundred twenty-eight".