43015872872873 has 2 divisors, whose sum is σ = 43015872872874. Its totient is φ = 43015872872872.

The previous prime is 43015872872849. The next prime is 43015872872911. The reversal of 43015872872873 is 37827827851034.

43015872872873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33323684292889 + 9692188579984 = 5772667^2 + 3113228^2 .

It is a cyclic number.

It is not a de Polignac number, because 43015872872873 - 2²⁰ = 43015871824297 is a prime.

It is not a weakly prime, because it can be changed into another prime (43015872872803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21507936436436 + 21507936436437.

It is an arithmetic number, because the mean of its divisors is an integer number (21507936436437).

Almost surely, 2^{43015872872873} is an apocalyptic number.

It is an amenable number.

43015872872873 is a deficient number, since it is larger than the sum of its proper divisors (1).

43015872872873 is an equidigital number, since it uses as much as digits as its factorization.

43015872872873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126443520, while the sum is 65.

The spelling of 43015872872873 in words is "forty-three trillion, fifteen billion, eight hundred seventy-two million, eight hundred seventy-two thousand, eight hundred seventy-three".