11953932493 has 2 divisors, whose sum is σ = 11953932494. Its totient is φ = 11953932492.

The previous prime is 11953932457. The next prime is 11953932499. The reversal of 11953932493 is 39423935911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11937310564 + 16621929 = 109258^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 11953932493 - 2⁹ = 11953931981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11953932499) 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, 5976966246 + 5976966247.

It is an arithmetic number, because the mean of its divisors is an integer number (5976966247).

Almost surely, 2^11953932493 is an apocalyptic number.

It is an amenable number.

11953932493 is a deficient number, since it is larger than the sum of its proper divisors (1).

11953932493 is an equidigital number, since it uses as much as digits as its factorization.

11953932493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 49.

The spelling of 11953932493 in words is "eleven billion, nine hundred fifty-three million, nine hundred thirty-two thousand, four hundred ninety-three".