2117515742 has 8 divisors (see below), whose sum is σ = 3193822632. Its totient is φ = 1052908200.

The previous prime is 2117515739. The next prime is 2117515747. The reversal of 2117515742 is 2475157112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117515747) 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, 2924384 + ... + 2925107.

It is an arithmetic number, because the mean of its divisors is an integer number (399227829).

Almost surely, 2^2117515742 is an apocalyptic number.

2117515742 is a deficient number, since it is larger than the sum of its proper divisors (1076306890).

2117515742 is a wasteful number, since it uses less digits than its factorization.

2117515742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849674.

The product of its digits is 19600, while the sum is 35.

The square root of 2117515742 is about 46016.4725071360. The cubic root of 2117515742 is about 1284.1296759751.

The spelling of 2117515742 in words is "two billion, one hundred seventeen million, five hundred fifteen thousand, seven hundred forty-two".