2117929511 has 8 divisors (see below), whose sum is σ = 2123432448. Its totient is φ = 2112435000.

The previous prime is 2117929481. The next prime is 2117929519. The reversal of 2117929511 is 1159297112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2117929511 - 2¹⁸ = 2117667367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117929519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084586 + ... + 1086536.

It is an arithmetic number, because the mean of its divisors is an integer number (265429056).

Almost surely, 2^2117929511 is an apocalyptic number.

2117929511 is a deficient number, since it is larger than the sum of its proper divisors (5502937).

2117929511 is a wasteful number, since it uses less digits than its factorization.

2117929511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213.

The product of its digits is 11340, while the sum is 38.

The square root of 2117929511 is about 46020.9681666955. The cubic root of 2117929511 is about 1284.2133114726.

The spelling of 2117929511 in words is "two billion, one hundred seventeen million, nine hundred twenty-nine thousand, five hundred eleven".