2516776789 has 4 divisors (see below), whose sum is σ = 2522213056. Its totient is φ = 2511340524.

The previous prime is 2516776783. The next prime is 2516776813. The reversal of 2516776789 is 9876776152.

2516776789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2516776789 - 2²⁹ = 1979905877 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 (2516776783) 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, 2717439 + ... + 2718364.

It is an arithmetic number, because the mean of its divisors is an integer number (630553264).

Almost surely, 2^2516776789 is an apocalyptic number.

It is an amenable number.

2516776789 is a deficient number, since it is larger than the sum of its proper divisors (5436267).

2516776789 is an equidigital number, since it uses as much as digits as its factorization.

2516776789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436266.

The product of its digits is 8890560, while the sum is 58.

The square root of 2516776789 is about 50167.4873698095. The cubic root of 2516776789 is about 1360.2379898174.

The spelling of 2516776789 in words is "two billion, five hundred sixteen million, seven hundred seventy-six thousand, seven hundred eighty-nine".