2117976874 has 8 divisors (see below), whose sum is σ = 3421347300. Its totient is φ = 977527776.

The previous prime is 2117976871. The next prime is 2117976881. The reversal of 2117976874 is 4786797112.

It can be written as a sum of positive squares in 2 ways, for example, as 1864944225 + 253032649 = 43185^2 + 15907^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2117976871) 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, 40730299 + ... + 40730350.

Almost surely, 2^2117976874 is an apocalyptic number.

2117976874 is a deficient number, since it is larger than the sum of its proper divisors (1303370426).

2117976874 is a wasteful number, since it uses less digits than its factorization.

2117976874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81460664.

The product of its digits is 1185408, while the sum is 52.

The square root of 2117976874 is about 46021.4827444749. The cubic root of 2117976874 is about 1284.2228843032. Note that the first 3 decimals are identical.

The spelling of 2117976874 in words is "two billion, one hundred seventeen million, nine hundred seventy-six thousand, eight hundred seventy-four".