2116985754 has 16 divisors (see below), whose sum is σ = 4559661792. Its totient is φ = 651380208.

The previous prime is 2116985729. The next prime is 2116985777. The reversal of 2116985754 is 4575896112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13570344 + ... + 13570499.

It is an arithmetic number, because the mean of its divisors is an integer number (284978862).

Almost surely, 2^2116985754 is an apocalyptic number.

2116985754 is an abundant number, since it is smaller than the sum of its proper divisors (2442676038).

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

2116985754 is a wasteful number, since it uses less digits than its factorization.

2116985754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27140861.

The product of its digits is 604800, while the sum is 48.

The square root of 2116985754 is about 46010.7134697996. The cubic root of 2116985754 is about 1284.0225331106.

The spelling of 2116985754 in words is "two billion, one hundred sixteen million, nine hundred eighty-five thousand, seven hundred fifty-four".