3871505320 has 32 divisors (see below), whose sum is σ = 8720113320. Its totient is φ = 1546961920.

The previous prime is 3871505263. The next prime is 3871505321. The reversal of 3871505320 is 235051783.

It can be written as a sum of positive squares in 4 ways, for example, as 1834066276 + 2037439044 = 42826^2 + 45138^2 .

It is not an unprimeable number, because it can be changed into a prime (3871505321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12661 + ... + 88900.

Almost surely, 2^3871505320 is an apocalyptic number.

It is an amenable number.

3871505320 is an abundant number, since it is smaller than the sum of its proper divisors (4848608000).

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

3871505320 is a wasteful number, since it uses less digits than its factorization.

3871505320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102525 (or 102521 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 3871505320 is about 62221.4217131046. The cubic root of 3871505320 is about 1570.2180069695.

The spelling of 3871505320 in words is "three billion, eight hundred seventy-one million, five hundred five thousand, three hundred twenty".