2657038188823 has 2 divisors, whose sum is σ = 2657038188824. Its totient is φ = 2657038188822.

The previous prime is 2657038188811. The next prime is 2657038188853. The reversal of 2657038188823 is 3288818307562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2657038188823 - 2¹³ = 2657038180631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2657038188853) 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 as a sum of consecutive naturals, namely, 1328519094411 + 1328519094412.

It is an arithmetic number, because the mean of its divisors is an integer number (1328519094412).

Almost surely, 2^{2657038188823} is an apocalyptic number.

2657038188823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657038188823 is an equidigital number, since it uses as much as digits as its factorization.

2657038188823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 2657038188823 in words is "two trillion, six hundred fifty-seven billion, thirty-eight million, one hundred eighty-eight thousand, eight hundred twenty-three".