3765640988 has 12 divisors (see below), whose sum is σ = 6590500560. Its totient is φ = 1882640832.

The previous prime is 3765640973. The next prime is 3765641017. The reversal of 3765640988 is 8890465673.

3765640988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3765640988² = 28360104101011232288, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9593 + ... + 87311.

It is an arithmetic number, because the mean of its divisors is an integer number (549208380).

Almost surely, 2^3765640988 is an apocalyptic number.

It is an amenable number.

3765640988 is a deficient number, since it is larger than the sum of its proper divisors (2824859572).

3765640988 is a wasteful number, since it uses less digits than its factorization.

3765640988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89836 (or 89834 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The square root of 3765640988 is about 61364.8188133885. The cubic root of 3765640988 is about 1555.7732651168.

The spelling of 3765640988 in words is "three billion, seven hundred sixty-five million, six hundred forty thousand, nine hundred eighty-eight".