3771865540 has 48 divisors (see below), whose sum is σ = 7978340160. Its totient is φ = 1497847680.

The previous prime is 3771865523. The next prime is 3771865553. The reversal of 3771865540 is 455681773.

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 15 ways as a sum of consecutive naturals, for example, 2206206 + ... + 2207914.

It is an arithmetic number, because the mean of its divisors is an integer number (166215420).

Almost surely, 2^3771865540 is an apocalyptic number.

It is an amenable number.

3771865540 is an abundant number, since it is smaller than the sum of its proper divisors (4206474620).

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

3771865540 is a wasteful number, since it uses less digits than its factorization.

3771865540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452 (or 2450 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 3771865540 is about 61415.5154663705. The cubic root of 3771865540 is about 1556.6300170554.

The spelling of 3771865540 in words is "three billion, seven hundred seventy-one million, eight hundred sixty-five thousand, five hundred forty".