2118770953349 has 2 divisors, whose sum is σ = 2118770953350. Its totient is φ = 2118770953348.

The previous prime is 2118770953333. The next prime is 2118770953367. The reversal of 2118770953349 is 9433590778112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1665312820900 + 453458132449 = 1290470^2 + 673393^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118770953349 - 2⁴ = 2118770953333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118770953249) 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, 1059385476674 + 1059385476675.

It is an arithmetic number, because the mean of its divisors is an integer number (1059385476675).

Almost surely, 2^{2118770953349} is an apocalyptic number.

It is an amenable number.

2118770953349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118770953349 is an equidigital number, since it uses as much as digits as its factorization.

2118770953349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 2118770953349 in words is "two trillion, one hundred eighteen billion, seven hundred seventy million, nine hundred fifty-three thousand, three hundred forty-nine".