43723852997 has 6 divisors (see below), whose sum is σ = 48060103014. Its totient is φ = 39748957160.

The previous prime is 43723852979. The next prime is 43723853023. The reversal of 43723852997 is 79925832734.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26686816321 + 17037036676 = 163361^2 + 130526^2 .

It is not a de Polignac number, because 43723852997 - 2¹² = 43723848901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43723852957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180676958 + ... + 180677199.

It is an arithmetic number, because the mean of its divisors is an integer number (8010017169).

Almost surely, 2^43723852997 is an apocalyptic number.

It is an amenable number.

43723852997 is a deficient number, since it is larger than the sum of its proper divisors (4336250017).

43723852997 is a wasteful number, since it uses less digits than its factorization.

43723852997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361354179 (or 361354168 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 59.

The spelling of 43723852997 in words is "forty-three billion, seven hundred twenty-three million, eight hundred fifty-two thousand, nine hundred ninety-seven".