2057115559649 has 2 divisors, whose sum is σ = 2057115559650. Its totient is φ = 2057115559648.

The previous prime is 2057115559633. The next prime is 2057115559663. The reversal of 2057115559649 is 9469555117502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1881374343424 + 175741216225 = 1371632^2 + 419215^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057115559649 - 2⁴ = 2057115559633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2057115559669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028557779824 + 1028557779825.

It is an arithmetic number, because the mean of its divisors is an integer number (1028557779825).

Almost surely, 2^{2057115559649} is an apocalyptic number.

It is an amenable number.

2057115559649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057115559649 is an equidigital number, since it uses as much as digits as its factorization.

2057115559649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010000, while the sum is 59.

The spelling of 2057115559649 in words is "two trillion, fifty-seven billion, one hundred fifteen million, five hundred fifty-nine thousand, six hundred forty-nine".