5780138255257 has 4 divisors (see below), whose sum is σ = 5783869785700. Its totient is φ = 5776406724816.

The previous prime is 5780138255189. The next prime is 5780138255263. The reversal of 5780138255257 is 7525528310875.

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 585800421376 + 5194337833881 = 765376^2 + 2279109^2 .

It is a cyclic number.

It is not a de Polignac number, because 5780138255257 - 2²⁷ = 5780004037529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5780138255357) 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, 1865762898 + ... + 1865765995.

It is an arithmetic number, because the mean of its divisors is an integer number (1445967446425).

Almost surely, 2^{5780138255257} is an apocalyptic number.

It is an amenable number.

5780138255257 is a deficient number, since it is larger than the sum of its proper divisors (3731530443).

5780138255257 is a wasteful number, since it uses less digits than its factorization.

5780138255257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731530442.

The product of its (nonzero) digits is 23520000, while the sum is 58.

The spelling of 5780138255257 in words is "five trillion, seven hundred eighty billion, one hundred thirty-eight million, two hundred fifty-five thousand, two hundred fifty-seven".