11821676359549 has 8 divisors (see below), whose sum is σ = 13510526234240. Its totient is φ = 10132836226416.

The previous prime is 11821676359547. The next prime is 11821676359553. The reversal of 11821676359549 is 94595367612811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11821676359549 - 2¹ = 11821676359547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821676359541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382387 + ... + 4877455.

It is an arithmetic number, because the mean of its divisors is an integer number (1688815779280).

Almost surely, 2^{11821676359549} is an apocalyptic number.

It is an amenable number.

11821676359549 is a deficient number, since it is larger than the sum of its proper divisors (1688849874691).

11821676359549 is an equidigital number, since it uses as much as digits as its factorization.

11821676359549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870779.

The product of its digits is 97977600, while the sum is 67.

The spelling of 11821676359549 in words is "eleven trillion, eight hundred twenty-one billion, six hundred seventy-six million, three hundred fifty-nine thousand, five hundred forty-nine".