499991117101 has 24 divisors (see below), whose sum is σ = 586306049280. Its totient is φ = 425120724000.

The previous prime is 499991117099. The next prime is 499991117113. The reversal of 499991117101 is 101711199994.

It is not a de Polignac number, because 499991117101 - 2¹ = 499991117099 is a prime.

It is a super-2 number, since 2×499991117101² (a number of 24 digits) contains 22 as substring.

It is the 707101-st Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499991117141) by changing a digit.

It is a nontrivial repunit in base 707100.

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 23 ways as a sum of consecutive naturals, for example, 5198236 + ... + 5293546.

It is an arithmetic number, because the mean of its divisors is an integer number (24429418720).

Almost surely, 2^499991117101 is an apocalyptic number.

It is an amenable number.

499991117101 is a deficient number, since it is larger than the sum of its proper divisors (86314932179).

499991117101 is a wasteful number, since it uses less digits than its factorization.

499991117101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96185 (or 96178 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 52.

The spelling of 499991117101 in words is "four hundred ninety-nine billion, nine hundred ninety-one million, one hundred seventeen thousand, one hundred one".