2135992373917 has 2 divisors, whose sum is σ = 2135992373918. Its totient is φ = 2135992373916.

The previous prime is 2135992373909. The next prime is 2135992373947. The reversal of 2135992373917 is 7193732995312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1220658167556 + 915334206361 = 1104834^2 + 956731^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135992373917 - 2³ = 2135992373909 is a prime.

It is a super-2 number, since 2×2135992373917² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135992373947) 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, 1067996186958 + 1067996186959.

It is an arithmetic number, because the mean of its divisors is an integer number (1067996186959).

Almost surely, 2^{2135992373917} is an apocalyptic number.

It is an amenable number.

2135992373917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135992373917 is an equidigital number, since it uses as much as digits as its factorization.

2135992373917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19289340, while the sum is 61.

The spelling of 2135992373917 in words is "two trillion, one hundred thirty-five billion, nine hundred ninety-two million, three hundred seventy-three thousand, nine hundred seventeen".