43198759673 has 4 divisors (see below), whose sum is σ = 43199180148. Its totient is φ = 43198339200.

The previous prime is 43198759621. The next prime is 43198759679. The reversal of 43198759673 is 37695789134.

43198759673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37695789134 = 2 ⋅18847894567.

It can be written as a sum of positive squares in 2 ways, for example, as 3449565289 + 39749194384 = 58733^2 + 199372^2 .

It is a cyclic number.

It is not a de Polignac number, because 43198759673 - 2⁶ = 43198759609 is a prime.

It is a super-2 number, since 2×43198759673² (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 (43198759679) 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, 57665 + ... + 299537.

It is an arithmetic number, because the mean of its divisors is an integer number (10799795037).

Almost surely, 2^43198759673 is an apocalyptic number.

It is an amenable number.

43198759673 is a deficient number, since it is larger than the sum of its proper divisors (420475).

43198759673 is a wasteful number, since it uses less digits than its factorization.

43198759673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420474.

The product of its digits is 34292160, while the sum is 62.

The spelling of 43198759673 in words is "forty-three billion, one hundred ninety-eight million, seven hundred fifty-nine thousand, six hundred seventy-three".