2651608313 has 4 divisors (see below), whose sum is σ = 2651890320. Its totient is φ = 2651326308.

The previous prime is 2651608307. The next prime is 2651608361. The reversal of 2651608313 is 3138061562.

2651608313 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, and also an emirpimes, since its reverse is a distinct semiprime: 3138061562 = 2 ⋅1569030781.

It is a cyclic number.

It is not a de Polignac number, because 2651608313 - 2⁶ = 2651608249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2651608513) 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, 126395 + ... + 145872.

It is an arithmetic number, because the mean of its divisors is an integer number (662972580).

Almost surely, 2^2651608313 is an apocalyptic number.

It is an amenable number.

2651608313 is a deficient number, since it is larger than the sum of its proper divisors (282007).

2651608313 is an equidigital number, since it uses as much as digits as its factorization.

2651608313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282006.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2651608313 is about 51493.7696522599. The cubic root of 2651608313 is about 1384.1074002059.

Adding to 2651608313 its reverse (3138061562), we get a palindrome (5789669875).

The spelling of 2651608313 in words is "two billion, six hundred fifty-one million, six hundred eight thousand, three hundred thirteen".