3649769738 has 16 divisors (see below), whose sum is σ = 5604736896. Its totient is φ = 1781566080.

The previous prime is 3649769699. The next prime is 3649769749. The reversal of 3649769738 is 8379679463.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186143 + ... + 204813.

It is an arithmetic number, because the mean of its divisors is an integer number (350296056).

Almost surely, 2^3649769738 is an apocalyptic number.

3649769738 is a deficient number, since it is larger than the sum of its proper divisors (1954967158).

3649769738 is a wasteful number, since it uses less digits than its factorization.

3649769738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20989.

The product of its digits is 41150592, while the sum is 62.

The square root of 3649769738 is about 60413.3241760458. The cubic root of 3649769738 is about 1539.6493464296.

The spelling of 3649769738 in words is "three billion, six hundred forty-nine million, seven hundred sixty-nine thousand, seven hundred thirty-eight".