2597120873 has 4 divisors (see below), whose sum is σ = 2620947780. Its totient is φ = 2573293968.

The previous prime is 2597120861. The next prime is 2597120947. The reversal of 2597120873 is 3780217952.

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 1228712809 + 1368408064 = 35053^2 + 36992^2 .

It is a cyclic number.

It is not a de Polignac number, because 2597120873 - 2¹⁰ = 2597119849 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 (2597120803) 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, 11913290 + ... + 11913507.

It is an arithmetic number, because the mean of its divisors is an integer number (655236945).

Almost surely, 2^2597120873 is an apocalyptic number.

It is an amenable number.

2597120873 is a deficient number, since it is larger than the sum of its proper divisors (23826907).

2597120873 is a wasteful number, since it uses less digits than its factorization.

2597120873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23826906.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 2597120873 is about 50961.9551528393. The cubic root of 2597120873 is about 1374.5611157738.

The spelling of 2597120873 in words is "two billion, five hundred ninety-seven million, one hundred twenty thousand, eight hundred seventy-three".