11621873060381 has 2 divisors, whose sum is σ = 11621873060382. Its totient is φ = 11621873060380.

The previous prime is 11621873060363. The next prime is 11621873060471. The reversal of 11621873060381 is 18306037812611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11559490005625 + 62383054756 = 3399925^2 + 249766^2 .

It is a cyclic number.

It is not a de Polignac number, because 11621873060381 - 2²⁶ = 11621805951517 is a prime.

It is a super-2 number, since 2×11621873060381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11621873060321) 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, 5810936530190 + 5810936530191.

It is an arithmetic number, because the mean of its divisors is an integer number (5810936530191).

Almost surely, 2^{11621873060381} is an apocalyptic number.

It is an amenable number.

11621873060381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621873060381 is an equidigital number, since it uses as much as digits as its factorization.

11621873060381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 11621873060381 in words is "eleven trillion, six hundred twenty-one billion, eight hundred seventy-three million, sixty thousand, three hundred eighty-one".