11780718353 has 2 divisors, whose sum is σ = 11780718354. Its totient is φ = 11780718352.

The previous prime is 11780718337. The next prime is 11780718373. The reversal of 11780718353 is 35381708711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6523308289 + 5257410064 = 80767^2 + 72508^2 .

It is a cyclic number.

It is not a de Polignac number, because 11780718353 - 2⁴ = 11780718337 is a prime.

It is a super-2 number, since 2×11780718353² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11780718373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5890359176 + 5890359177.

It is an arithmetic number, because the mean of its divisors is an integer number (5890359177).

Almost surely, 2^11780718353 is an apocalyptic number.

It is an amenable number.

11780718353 is a deficient number, since it is larger than the sum of its proper divisors (1).

11780718353 is an equidigital number, since it uses as much as digits as its factorization.

11780718353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 11780718353 in words is "eleven billion, seven hundred eighty million, seven hundred eighteen thousand, three hundred fifty-three".