3649885266 has 16 divisors (see below), whose sum is σ = 7301669184. Its totient is φ = 1216311984.

The previous prime is 3649885247. The next prime is 3649885271. The reversal of 3649885266 is 6625889463.

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, 53481 + ... + 100796.

It is an arithmetic number, because the mean of its divisors is an integer number (456354324).

Almost surely, 2^3649885266 is an apocalyptic number.

3649885266 is an abundant number, since it is smaller than the sum of its proper divisors (3651783918).

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

3649885266 is a wasteful number, since it uses less digits than its factorization.

3649885266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158225.

The product of its digits is 14929920, while the sum is 57.

The square root of 3649885266 is about 60414.2803151705. The cubic root of 3649885266 is about 1539.6655913570.

The spelling of 3649885266 in words is "three billion, six hundred forty-nine million, eight hundred eighty-five thousand, two hundred sixty-six".