43316149873 has 4 divisors (see below), whose sum is σ = 43316666740. Its totient is φ = 43315633008.

The previous prime is 43316149847. The next prime is 43316149927. The reversal of 43316149873 is 37894161334.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18847994944 + 24468154929 = 137288^2 + 156423^2 .

It is a cyclic number.

It is not a de Polignac number, because 43316149873 - 2²¹ = 43314052721 is a prime.

It is a super-2 number, since 2×43316149873² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43316149843) 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, 100590 + ... + 311047.

It is an arithmetic number, because the mean of its divisors is an integer number (10829166685).

Almost surely, 2^43316149873 is an apocalyptic number.

It is an amenable number.

43316149873 is a deficient number, since it is larger than the sum of its proper divisors (516867).

43316149873 is a wasteful number, since it uses less digits than its factorization.

43316149873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516866.

The product of its digits is 1306368, while the sum is 49.

The spelling of 43316149873 in words is "forty-three billion, three hundred sixteen million, one hundred forty-nine thousand, eight hundred seventy-three".