99431134709759 has 4 divisors (see below), whose sum is σ = 99464069835240. Its totient is φ = 99398199584280.

The previous prime is 99431134709717. The next prime is 99431134709783. The reversal of 99431134709759 is 95790743113499.

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

It is a cyclic number.

It is not a de Polignac number, because 99431134709759 - 2⁴⁰ = 98331623081983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99431134709692 and 99431134709701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99431134709359) 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, 16467558212 + ... + 16467564249.

It is an arithmetic number, because the mean of its divisors is an integer number (24866017458810).

Almost surely, 2^{99431134709759} is an apocalyptic number.

99431134709759 is a deficient number, since it is larger than the sum of its proper divisors (32935125481).

99431134709759 is a wasteful number, since it uses less digits than its factorization.

99431134709759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32935125480.

The product of its (nonzero) digits is 231472080, while the sum is 71.

The spelling of 99431134709759 in words is "ninety-nine trillion, four hundred thirty-one billion, one hundred thirty-four million, seven hundred nine thousand, seven hundred fifty-nine".