99995723243 has 16 divisors (see below), whose sum is σ = 112383754560. Its totient is φ = 88279555584.

The previous prime is 99995723237. The next prime is 99995723251. The reversal of 99995723243 is 34232759999.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 99995723243 - 2¹² = 99995719147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99995723203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3240455 + ... + 3271167.

It is an arithmetic number, because the mean of its divisors is an integer number (7023984660).

Almost surely, 2^99995723243 is an apocalyptic number.

99995723243 is a deficient number, since it is larger than the sum of its proper divisors (12388031317).

99995723243 is a wasteful number, since it uses less digits than its factorization.

99995723243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41638.

The product of its digits is 33067440, while the sum is 62.

The spelling of 99995723243 in words is "ninety-nine billion, nine hundred ninety-five million, seven hundred twenty-three thousand, two hundred forty-three".