3549396851664 has 40 divisors (see below), whose sum is σ = 9175674034752. Its totient is φ = 1182306627840.

The previous prime is 3549396851593. The next prime is 3549396851677. The reversal of 3549396851664 is 4661586939453.

3549396851664 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25732252 + ... + 25869819.

Almost surely, 2^{3549396851664} is an apocalyptic number.

It is an amenable number.

3549396851664 is an abundant number, since it is smaller than the sum of its proper divisors (5626277183088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3549396851664 is a wasteful number, since it uses less digits than its factorization.

3549396851664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51603515 (or 51603509 counting only the distinct ones).

The product of its digits is 503884800, while the sum is 69.

The spelling of 3549396851664 in words is "three trillion, five hundred forty-nine billion, three hundred ninety-six million, eight hundred fifty-one thousand, six hundred sixty-four".