43687004871 has 4 divisors (see below), whose sum is σ = 58249339832. Its totient is φ = 29124669912.

The previous prime is 43687004849. The next prime is 43687004873. The reversal of 43687004871 is 17840078634.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 43687004871 - 2⁶ = 43687004807 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 43687004871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43687004873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7281167476 + ... + 7281167481.

It is an arithmetic number, because the mean of its divisors is an integer number (14562334958).

Almost surely, 2^43687004871 is an apocalyptic number.

43687004871 is a deficient number, since it is larger than the sum of its proper divisors (14562334961).

43687004871 is a wasteful number, since it uses less digits than its factorization.

43687004871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14562334960.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 43687004871 in words is "forty-three billion, six hundred eighty-seven million, four thousand, eight hundred seventy-one".