43698109885997 has 8 divisors (see below), whose sum is σ = 51003265034496. Its totient is φ = 36658596742992.

The previous prime is 43698109885993. The next prime is 43698109886021. The reversal of 43698109885997 is 79958890189634.

43698109885997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 43698109885997 - 2² = 43698109885993 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 (43698109885993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66410501018 + ... + 66410501675.

It is an arithmetic number, because the mean of its divisors is an integer number (6375408129312).

Almost surely, 2^{43698109885997} is an apocalyptic number.

43698109885997 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

43698109885997 is a deficient number, since it is larger than the sum of its proper divisors (7305155148499).

43698109885997 is a wasteful number, since it uses less digits than its factorization.

43698109885997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132821002747.

The product of its (nonzero) digits is 8465264640, while the sum is 86.

The spelling of 43698109885997 in words is "forty-three trillion, six hundred ninety-eight billion, one hundred nine million, eight hundred eighty-five thousand, nine hundred ninety-seven".