4132561887 has 12 divisors (see below), whose sum is σ = 6053331024. Its totient is φ = 2716237440.

The previous prime is 4132561843. The next prime is 4132561889. The reversal of 4132561887 is 7881652314.

4132561887 is a `hidden beast` number, since 4 + 1 + 3 + 2 + 561 + 8 + 87 = 666.

It is not a de Polignac number, because 4132561887 - 2¹¹ = 4132559839 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4132561889) 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, 3232978 + ... + 3234255.

It is an arithmetic number, because the mean of its divisors is an integer number (504444252).

Almost surely, 2^4132561887 is an apocalyptic number.

4132561887 is a deficient number, since it is larger than the sum of its proper divisors (1920769137).

4132561887 is a wasteful number, since it uses less digits than its factorization.

4132561887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6467310 (or 6467307 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 4132561887 is about 64285.0051489459. The cubic root of 4132561887 is about 1604.7465672574.

The spelling of 4132561887 in words is "four billion, one hundred thirty-two million, five hundred sixty-one thousand, eight hundred eighty-seven".