2116892513 has 4 divisors (see below), whose sum is σ = 2241415620. Its totient is φ = 1992369408.

The previous prime is 2116892509. The next prime is 2116892521. The reversal of 2116892513 is 3152986112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 923673664 + 1193218849 = 30392^2 + 34543^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116892513 - 2² = 2116892509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116892563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62261528 + ... + 62261561.

It is an arithmetic number, because the mean of its divisors is an integer number (560353905).

Almost surely, 2^2116892513 is an apocalyptic number.

It is an amenable number.

2116892513 is a deficient number, since it is larger than the sum of its proper divisors (124523107).

2116892513 is a wasteful number, since it uses less digits than its factorization.

2116892513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124523106.

The product of its digits is 25920, while the sum is 38.

The square root of 2116892513 is about 46009.7002055001. The cubic root of 2116892513 is about 1284.0036815741.

The spelling of 2116892513 in words is "two billion, one hundred sixteen million, eight hundred ninety-two thousand, five hundred thirteen".