2557770554963 has 4 divisors (see below), whose sum is σ = 2754522136128. Its totient is φ = 2361018973800.

The previous prime is 2557770554947. The next prime is 2557770554993. The reversal of 2557770554963 is 3694550777552.

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

It is a cyclic number.

It is not a de Polignac number, because 2557770554963 - 2⁴ = 2557770554947 is a prime.

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 2557770554963.

It is not an unprimeable number, because it can be changed into a prime (2557770554993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98375790563 + ... + 98375790588.

It is an arithmetic number, because the mean of its divisors is an integer number (688630534032).

Almost surely, 2^{2557770554963} is an apocalyptic number.

2557770554963 is a deficient number, since it is larger than the sum of its proper divisors (196751581165).

2557770554963 is a wasteful number, since it uses less digits than its factorization.

2557770554963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196751581164.

The product of its (nonzero) digits is 277830000, while the sum is 65.

The spelling of 2557770554963 in words is "two trillion, five hundred fifty-seven billion, seven hundred seventy million, five hundred fifty-four thousand, nine hundred sixty-three".