99999404507 has 16 divisors (see below), whose sum is σ = 107461728000. Its totient is φ = 92774918880.

The previous prime is 99999404503. The next prime is 99999404509. The reversal of 99999404507 is 70540499999.

It is a cyclic number.

It is not a de Polignac number, because 99999404507 - 2² = 99999404503 is a prime.

It is a super-2 number, since 2×99999404507² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99999404503) 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, 47753 + ... + 449754.

It is an arithmetic number, because the mean of its divisors is an integer number (6716358000).

Almost surely, 2^99999404507 is an apocalyptic number.

99999404507 is a deficient number, since it is larger than the sum of its proper divisors (7462323493).

99999404507 is a wasteful number, since it uses less digits than its factorization.

99999404507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497746.

The product of its (nonzero) digits is 33067440, while the sum is 65.

The spelling of 99999404507 in words is "ninety-nine billion, nine hundred ninety-nine million, four hundred four thousand, five hundred seven".