3649173068450 has 72 divisors (see below), whose sum is σ = 8399699402688. Its totient is φ = 1154903106240.

The previous prime is 3649173068399. The next prime is 3649173068479. The reversal of 3649173068450 is 548603719463.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30787622 + ... + 30905921.

It is an arithmetic number, because the mean of its divisors is an integer number (116662491704).

Almost surely, 2^{3649173068450} is an apocalyptic number.

3649173068450 is an abundant number, since it is smaller than the sum of its proper divisors (4750526334238).

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

3649173068450 is a wasteful number, since it uses less digits than its factorization.

3649173068450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61693588 (or 61693570 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 3649173068450 in words is "three trillion, six hundred forty-nine billion, one hundred seventy-three million, sixty-eight thousand, four hundred fifty".