11621234453663 has 2 divisors, whose sum is σ = 11621234453664. Its totient is φ = 11621234453662.

The previous prime is 11621234453639. The next prime is 11621234453671. The reversal of 11621234453663 is 36635443212611.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36635443212611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11621234453663 - 2¹⁸ = 11621234191519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11621234450663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810617226831 + 5810617226832.

It is an arithmetic number, because the mean of its divisors is an integer number (5810617226832).

Almost surely, 2^{11621234453663} is an apocalyptic number.

11621234453663 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621234453663 is an equidigital number, since it uses as much as digits as its factorization.

11621234453663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 47.

The spelling of 11621234453663 in words is "eleven trillion, six hundred twenty-one billion, two hundred thirty-four million, four hundred fifty-three thousand, six hundred sixty-three".