11836540973 has 2 divisors, whose sum is σ = 11836540974. Its totient is φ = 11836540972.

The previous prime is 11836540967. The next prime is 11836541033. The reversal of 11836540973 is 37904563811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7204105129 + 4632435844 = 84877^2 + 68062^2 .

It is a cyclic number.

It is not a de Polignac number, because 11836540973 - 2⁶ = 11836540909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11836540913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5918270486 + 5918270487.

It is an arithmetic number, because the mean of its divisors is an integer number (5918270487).

Almost surely, 2^11836540973 is an apocalyptic number.

It is an amenable number.

11836540973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11836540973 is an equidigital number, since it uses as much as digits as its factorization.

11836540973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 11836540973 in words is "eleven billion, eight hundred thirty-six million, five hundred forty thousand, nine hundred seventy-three".