2117639368 has 16 divisors (see below), whose sum is σ = 4276002780. Its totient is φ = 977371968.

The previous prime is 2117639353. The next prime is 2117639383. The reversal of 2117639368 is 8639367112.

It is an interprime number because it is at equal distance from previous prime (2117639353) and next prime (2117639383).

It can be written as a sum of positive squares in 2 ways, for example, as 2064611844 + 53027524 = 45438^2 + 7282^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10180855 + ... + 10181062.

Almost surely, 2^2117639368 is an apocalyptic number.

It is an amenable number.

2117639368 is an abundant number, since it is smaller than the sum of its proper divisors (2158363412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117639368 is a wasteful number, since it uses less digits than its factorization.

2117639368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20361936 (or 20361932 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 2117639368 is about 46017.8157673743. The cubic root of 2117639368 is about 1284.1546657501.

The spelling of 2117639368 in words is "two billion, one hundred seventeen million, six hundred thirty-nine thousand, three hundred sixty-eight".