3679505505549 has 8 divisors (see below), whose sum is σ = 5451119267520. Its totient is φ = 2453003670348.

The previous prime is 3679505505527. The next prime is 3679505505581. The reversal of 3679505505549 is 9455055059763.

It is a happy number.

3679505505549 is a `hidden beast` number, since 3 + 6 + 79 + 5 + 0 + 5 + 5 + 0 + 554 + 9 = 666.

It is not a de Polignac number, because 3679505505549 - 2¹⁹ = 3679504981261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3679505500549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68138990817 + ... + 68138990870.

It is an arithmetic number, because the mean of its divisors is an integer number (681389908440).

Almost surely, 2^{3679505505549} is an apocalyptic number.

It is an amenable number.

3679505505549 is a deficient number, since it is larger than the sum of its proper divisors (1771613761971).

3679505505549 is a wasteful number, since it uses less digits than its factorization.

3679505505549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136277981696 (or 136277981690 counting only the distinct ones).

The product of its (nonzero) digits is 127575000, while the sum is 63.

The spelling of 3679505505549 in words is "three trillion, six hundred seventy-nine billion, five hundred five million, five hundred five thousand, five hundred forty-nine".