11900645933779 has 4 divisors (see below), whose sum is σ = 11900737459080. Its totient is φ = 11900554408480.

The previous prime is 11900645933747. The next prime is 11900645933807. The reversal of 11900645933779 is 97733954600911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11900645933779 - 2⁵ = 11900645933747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11900645933779.

It is not an unprimeable number, because it can be changed into a prime (11900645933179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45567334 + ... + 45827755.

It is an arithmetic number, because the mean of its divisors is an integer number (2975184364770).

Almost surely, 2^{11900645933779} is an apocalyptic number.

11900645933779 is a deficient number, since it is larger than the sum of its proper divisors (91525301).

11900645933779 is an equidigital number, since it uses as much as digits as its factorization.

11900645933779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91525300.

The product of its (nonzero) digits is 38578680, while the sum is 64.

The spelling of 11900645933779 in words is "eleven trillion, nine hundred billion, six hundred forty-five million, nine hundred thirty-three thousand, seven hundred seventy-nine".