3649856648144 has 40 divisors (see below), whose sum is σ = 8195653980288. Its totient is φ = 1542192946560.

The previous prime is 3649856648143. The next prime is 3649856648149. The reversal of 3649856648144 is 4418466589463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649856648143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229485047 + ... + 229500950.

Almost surely, 2^{3649856648144} is an apocalyptic number.

It is an amenable number.

3649856648144 is an abundant number, since it is smaller than the sum of its proper divisors (4545797332144).

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

3649856648144 is a wasteful number, since it uses less digits than its factorization.

3649856648144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458986083 (or 458986077 counting only the distinct ones).

The product of its digits is 477757440, while the sum is 68.

The spelling of 3649856648144 in words is "three trillion, six hundred forty-nine billion, eight hundred fifty-six million, six hundred forty-eight thousand, one hundred forty-four".