2116948949 has 8 divisors (see below), whose sum is σ = 2202785280. Its totient is φ = 2032812496.

The previous prime is 2116948937. The next prime is 2116948961. The reversal of 2116948949 is 9498496112.

It is an interprime number because it is at equal distance from previous prime (2116948937) and next prime (2116948961).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2116948949 - 2⁸ = 2116948693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116948949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116948909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422429 + ... + 427410.

It is an arithmetic number, because the mean of its divisors is an integer number (275348160).

Almost surely, 2^2116948949 is an apocalyptic number.

It is an amenable number.

2116948949 is a deficient number, since it is larger than the sum of its proper divisors (85836331).

2116948949 is an equidigital number, since it uses as much as digits as its factorization.

2116948949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849939.

The product of its digits is 1119744, while the sum is 53.

The square root of 2116948949 is about 46010.3135068650. The cubic root of 2116948949 is about 1284.0150919138.

The spelling of 2116948949 in words is "two billion, one hundred sixteen million, nine hundred forty-eight thousand, nine hundred forty-nine".