2613758993 has 16 divisors (see below), whose sum is σ = 2808069264. Its totient is φ = 2424176640.

The previous prime is 2613758977. The next prime is 2613759007. The reversal of 2613758993 is 3998573162.

It can be written as a sum of positive squares in 8 ways, for example, as 827597824 + 1786161169 = 28768^2 + 42263^2 .

It is a cyclic number.

It is not a de Polignac number, because 2613758993 - 2⁴ = 2613758977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2613758923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394121 + ... + 400697.

It is an arithmetic number, because the mean of its divisors is an integer number (175504329).

Almost surely, 2^2613758993 is an apocalyptic number.

It is an amenable number.

2613758993 is a deficient number, since it is larger than the sum of its proper divisors (194310271).

2613758993 is a wasteful number, since it uses less digits than its factorization.

2613758993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932.

The product of its digits is 2449440, while the sum is 53.

The square root of 2613758993 is about 51124.9351393232. The cubic root of 2613758993 is about 1377.4901859308.

The spelling of 2613758993 in words is "two billion, six hundred thirteen million, seven hundred fifty-eight thousand, nine hundred ninety-three".