43835722873 has 8 divisors (see below), whose sum is σ = 44040141288. Its totient is φ = 43631745024.

The previous prime is 43835722859. The next prime is 43835722891. The reversal of 43835722873 is 37822753834.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6433323264 + 37402399609 = 80208^2 + 193397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43835722873 - 2¹⁷ = 43835591801 is a prime.

It is a super-5 number, since 5×43835722873⁵ (a number of 54 digits) contains 55555 as substring.

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 43835722873.

It is not an unprimeable number, because it can be changed into a prime (43835722573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90165 + ... + 309517.

It is an arithmetic number, because the mean of its divisors is an integer number (5505017661).

Almost surely, 2^43835722873 is an apocalyptic number.

It is an amenable number.

43835722873 is a deficient number, since it is larger than the sum of its proper divisors (204418415).

43835722873 is a wasteful number, since it uses less digits than its factorization.

43835722873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220283.

The product of its digits is 6773760, while the sum is 52.

The spelling of 43835722873 in words is "forty-three billion, eight hundred thirty-five million, seven hundred twenty-two thousand, eight hundred seventy-three".