11918192093 has 2 divisors, whose sum is σ = 11918192094. Its totient is φ = 11918192092.

The previous prime is 11918192081. The next prime is 11918192171. The reversal of 11918192093 is 39029181911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7876030009 + 4042162084 = 88747^2 + 63578^2 .

It is a cyclic number.

It is not a de Polignac number, because 11918192093 - 2⁶ = 11918192029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11918192593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5959096046 + 5959096047.

It is an arithmetic number, because the mean of its divisors is an integer number (5959096047).

Almost surely, 2^11918192093 is an apocalyptic number.

It is an amenable number.

11918192093 is a deficient number, since it is larger than the sum of its proper divisors (1).

11918192093 is an equidigital number, since it uses as much as digits as its factorization.

11918192093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 44.

The spelling of 11918192093 in words is "eleven billion, nine hundred eighteen million, one hundred ninety-two thousand, ninety-three".