2117792761 has 8 divisors (see below), whose sum is σ = 2420631360. Its totient is φ = 1815028368.

The previous prime is 2117792759. The next prime is 2117792779. The reversal of 2117792761 is 1672977112.

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 2117792761 - 2¹ = 2117792759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2117792701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72255 + ... + 97243.

It is an arithmetic number, because the mean of its divisors is an integer number (302578920).

Almost surely, 2^2117792761 is an apocalyptic number.

It is an amenable number.

2117792761 is a deficient number, since it is larger than the sum of its proper divisors (302838599).

2117792761 is a wasteful number, since it uses less digits than its factorization.

2117792761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37103.

The product of its digits is 74088, while the sum is 43.

The square root of 2117792761 is about 46019.4824069111. The cubic root of 2117792761 is about 1284.1856712782.

The spelling of 2117792761 in words is "two billion, one hundred seventeen million, seven hundred ninety-two thousand, seven hundred sixty-one".