2116928279 has 24 divisors (see below), whose sum is σ = 2258558640. Its totient is φ = 1983146880.

The previous prime is 2116928267. The next prime is 2116928287. The reversal of 2116928279 is 9728296112.

It is not a de Polignac number, because 2116928279 - 2²⁴ = 2100151063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116928479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4532804 + ... + 4533270.

It is an arithmetic number, because the mean of its divisors is an integer number (94106610).

Almost surely, 2^2116928279 is an apocalyptic number.

2116928279 is a deficient number, since it is larger than the sum of its proper divisors (141630361).

2116928279 is an equidigital number, since it uses as much as digits as its factorization.

2116928279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 640 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 2116928279 is about 46010.0888827657. The cubic root of 2116928279 is about 1284.0109128367.

The spelling of 2116928279 in words is "two billion, one hundred sixteen million, nine hundred twenty-eight thousand, two hundred seventy-nine".