43432955597 has 4 divisors (see below), whose sum is σ = 45987835356. Its totient is φ = 40878075840.

The previous prime is 43432955557. The next prime is 43432955603. The reversal of 43432955597 is 79555923434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39257081956 + 4175873641 = 198134^2 + 64621^2 .

It is a cyclic number.

It is not a de Polignac number, because 43432955597 - 2³² = 39137988301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43432955507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277439854 + ... + 1277439887.

It is an arithmetic number, because the mean of its divisors is an integer number (11496958839).

Almost surely, 2^43432955597 is an apocalyptic number.

It is an amenable number.

43432955597 is a deficient number, since it is larger than the sum of its proper divisors (2554879759).

43432955597 is a wasteful number, since it uses less digits than its factorization.

43432955597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554879758.

The product of its digits is 20412000, while the sum is 56.

The spelling of 43432955597 in words is "forty-three billion, four hundred thirty-two million, nine hundred fifty-five thousand, five hundred ninety-seven".