43873602873 has 16 divisors (see below), whose sum is σ = 64632214656. Its totient is φ = 26331641600.

The previous prime is 43873602859. The next prime is 43873602889. The reversal of 43873602873 is 37820637834.

It is a cyclic number.

It is not a de Polignac number, because 43873602873 - 2¹⁸ = 43873340729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (43873602823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18700278 + ... + 18702623.

It is an arithmetic number, because the mean of its divisors is an integer number (4039513416).

Almost surely, 2^43873602873 is an apocalyptic number.

It is an amenable number.

43873602873 is a deficient number, since it is larger than the sum of its proper divisors (20758611783).

43873602873 is a wasteful number, since it uses less digits than its factorization.

43873602873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37402944.

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 43873602873 in words is "forty-three billion, eight hundred seventy-three million, six hundred two thousand, eight hundred seventy-three".