3405523545 has 24 divisors (see below), whose sum is σ = 5904302976. Its totient is φ = 1815849888.

The previous prime is 3405523519. The next prime is 3405523559. The reversal of 3405523545 is 5453255043.

3405523545 is a `hidden beast` number, since 3 + 40 + 55 + 23 + 545 = 666.

It is not a de Polignac number, because 3405523545 - 2¹⁰ = 3405522521 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 303322 + ... + 314348.

It is an arithmetic number, because the mean of its divisors is an integer number (246012624).

Almost surely, 2^3405523545 is an apocalyptic number.

It is an amenable number.

3405523545 is a deficient number, since it is larger than the sum of its proper divisors (2498779431).

3405523545 is a wasteful number, since it uses less digits than its factorization.

3405523545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17901 (or 17898 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

The square root of 3405523545 is about 58356.8637351255. The cubic root of 3405523545 is about 1504.5084423887.

Adding to 3405523545 its reverse (5453255043), we get a palindrome (8858778588).

It can be divided in two parts, 34055 and 23545, that added together give a square (57600 = 240²).

The spelling of 3405523545 in words is "three billion, four hundred five million, five hundred twenty-three thousand, five hundred forty-five".