2117559788 has 6 divisors (see below), whose sum is σ = 3705729636. Its totient is φ = 1058779892.

The previous prime is 2117559779. The next prime is 2117559793. The reversal of 2117559788 is 8879557112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264694970 + ... + 264694977.

It is an arithmetic number, because the mean of its divisors is an integer number (617621606).

Almost surely, 2^2117559788 is an apocalyptic number.

It is an amenable number.

2117559788 is a deficient number, since it is larger than the sum of its proper divisors (1588169848).

2117559788 is a wasteful number, since it uses less digits than its factorization.

2117559788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529389951 (or 529389949 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 53.

The square root of 2117559788 is about 46016.9510941349. The cubic root of 2117559788 is about 1284.1385795505.

The spelling of 2117559788 in words is "two billion, one hundred seventeen million, five hundred fifty-nine thousand, seven hundred eighty-eight".