99504743975999 has 4 divisors (see below), whose sum is σ = 100622774807280. Its totient is φ = 98386713144720.

The previous prime is 99504743975851. The next prime is 99504743976023. The reversal of 99504743975999 is 99957934740599.

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 99504743975999 - 2¹² = 99504743971903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (89), and also a Moran number because the ratio is a prime number: 1118030831191 = 99504743975999 / (9 + 9 + 5 + 0 + 4 + 7 + 4 + 3 + 9 + 7 + 5 + 9 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99504743975099) 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, 559015415507 + ... + 559015415684.

It is an arithmetic number, because the mean of its divisors is an integer number (25155693701820).

Almost surely, 2^{99504743975999} is an apocalyptic number.

99504743975999 is a deficient number, since it is larger than the sum of its proper divisors (1118030831281).

99504743975999 is a wasteful number, since it uses less digits than its factorization.

99504743975999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118030831280.

The product of its (nonzero) digits is 31248730800, while the sum is 89.

The spelling of 99504743975999 in words is "ninety-nine trillion, five hundred four billion, seven hundred forty-three million, nine hundred seventy-five thousand, nine hundred ninety-nine".