2116732986 has 20 divisors (see below), whose sum is σ = 4743050202. Its totient is φ = 705577608.

The previous prime is 2116732967. The next prime is 2116733071. The reversal of 2116732986 is 6892376112.

It can be written as a sum of positive squares in only one way, i.e., 2114252361 + 2480625 = 45981^2 + 1575^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6532965 + ... + 6533288.

Almost surely, 2^2116732986 is an apocalyptic number.

2116732986 is an abundant number, since it is smaller than the sum of its proper divisors (2626317216).

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

2116732986 is a wasteful number, since it uses less digits than its factorization.

2116732986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13066267 (or 13066258 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2116732986 is about 46007.9665492836. The cubic root of 2116732986 is about 1283.9714269998.

The spelling of 2116732986 in words is "two billion, one hundred sixteen million, seven hundred thirty-two thousand, nine hundred eighty-six".