3740681609 has 12 divisors (see below), whose sum is σ = 4501455300. Its totient is φ = 3095735328.

The previous prime is 3740681573. The next prime is 3740681653. The reversal of 3740681609 is 9061860473.

It can be written as a sum of positive squares in 2 ways, for example, as 2614072384 + 1126609225 = 51128^2 + 33565^2 .

It is not a de Polignac number, because 3740681609 - 2⁸ = 3740681353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3740681609.

It is not an unprimeable number, because it can be changed into a prime (3740681669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1314794 + ... + 1317635.

It is an arithmetic number, because the mean of its divisors is an integer number (375121275).

Almost surely, 2^3740681609 is an apocalyptic number.

It is an amenable number.

3740681609 is a deficient number, since it is larger than the sum of its proper divisors (760773691).

3740681609 is a wasteful number, since it uses less digits than its factorization.

3740681609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632472 (or 2632465 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 3740681609 is about 61161.1119012727. Note that the first 3 decimals coincide. The cubic root of 3740681609 is about 1552.3283230410.

The spelling of 3740681609 in words is "three billion, seven hundred forty million, six hundred eighty-one thousand, six hundred nine".