11621234453579 has 2 divisors, whose sum is σ = 11621234453580. Its totient is φ = 11621234453578.

The previous prime is 11621234453539. The next prime is 11621234453629. The reversal of 11621234453579 is 97535443212611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11621234453579 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11621234453579.

It is not a weakly prime, because it can be changed into another prime (11621234453519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810617226789 + 5810617226790.

It is an arithmetic number, because the mean of its divisors is an integer number (5810617226790).

Almost surely, 2^{11621234453579} is an apocalyptic number.

11621234453579 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621234453579 is an equidigital number, since it uses as much as digits as its factorization.

11621234453579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 53.

The spelling of 11621234453579 in words is "eleven trillion, six hundred twenty-one billion, two hundred thirty-four million, four hundred fifty-three thousand, five hundred seventy-nine".