2557880447471 has 4 divisors (see below), whose sum is σ = 2692505734200. Its totient is φ = 2423255160744.

The previous prime is 2557880447453. The next prime is 2557880447477. The reversal of 2557880447471 is 1747440887552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2557880447471 is a prime.

It is a super-3 number, since 3×2557880447471³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557880447477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67312643336 + ... + 67312643373.

It is an arithmetic number, because the mean of its divisors is an integer number (673126433550).

Almost surely, 2^{2557880447471} is an apocalyptic number.

2557880447471 is a deficient number, since it is larger than the sum of its proper divisors (134625286729).

2557880447471 is a wasteful number, since it uses less digits than its factorization.

2557880447471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134625286728.

The product of its (nonzero) digits is 70246400, while the sum is 62.

The spelling of 2557880447471 in words is "two trillion, five hundred fifty-seven billion, eight hundred eighty million, four hundred forty-seven thousand, four hundred seventy-one".