2115353335257 has 6 divisors (see below), whose sum is σ = 3055510373162. Its totient is φ = 1410235556832.

The previous prime is 2115353335219. The next prime is 2115353335321. The reversal of 2115353335257 is 7525333535112.

2115353335257 is a `hidden beast` number, since 2 + 1 + 1 + 535 + 33 + 35 + 2 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1765547330121 + 349806005136 = 1328739^2 + 591444^2 .

It is not a de Polignac number, because 2115353335257 - 2¹⁹ = 2115352810969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115353335457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117519629728 + ... + 117519629745.

Almost surely, 2^{2115353335257} is an apocalyptic number.

It is an amenable number.

2115353335257 is a deficient number, since it is larger than the sum of its proper divisors (940157037905).

2115353335257 is a wasteful number, since it uses less digits than its factorization.

2115353335257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235039259479 (or 235039259476 counting only the distinct ones).

The product of its digits is 1417500, while the sum is 45.

The spelling of 2115353335257 in words is "two trillion, one hundred fifteen billion, three hundred fifty-three million, three hundred thirty-five thousand, two hundred fifty-seven".