2557803257793 has 24 divisors (see below), whose sum is σ = 4225079643200. Its totient is φ = 1460676154464.

The previous prime is 2557803257791. The next prime is 2557803257797. The reversal of 2557803257793 is 3977523087552.

2557803257793 is a `hidden beast` number, since 2 + 5 + 57 + 8 + 0 + 3 + 2 + 577 + 9 + 3 = 666.

2557803257793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2557803257793 - 2¹ = 2557803257791 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557803257793.

It is not an unprimeable number, because it can be changed into a prime (2557803257791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12756778 + ... + 12955731.

Almost surely, 2^{2557803257793} is an apocalyptic number.

It is an amenable number.

2557803257793 is a deficient number, since it is larger than the sum of its proper divisors (1667276385407).

2557803257793 is a wasteful number, since it uses less digits than its factorization.

2557803257793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25714101 (or 25714098 counting only the distinct ones).

The product of its (nonzero) digits is 111132000, while the sum is 63.

The spelling of 2557803257793 in words is "two trillion, five hundred fifty-seven billion, eight hundred three million, two hundred fifty-seven thousand, seven hundred ninety-three".