11754881773 has 4 divisors (see below), whose sum is σ = 11755266460. Its totient is φ = 11754497088.

The previous prime is 11754881771. The next prime is 11754881783. The reversal of 11754881773 is 37718845711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8464368004 + 3290513769 = 92002^2 + 57363^2 .

It is a cyclic number.

It is not a de Polignac number, because 11754881773 - 2¹ = 11754881771 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 11754881773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11754881771) 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, 142140 + ... + 209077.

It is an arithmetic number, because the mean of its divisors is an integer number (2938816615).

Almost surely, 2^11754881773 is an apocalyptic number.

It is an amenable number.

11754881773 is a deficient number, since it is larger than the sum of its proper divisors (384687).

11754881773 is an equidigital number, since it uses as much as digits as its factorization.

11754881773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384686.

The product of its digits is 1317120, while the sum is 52.

The spelling of 11754881773 in words is "eleven billion, seven hundred fifty-four million, eight hundred eighty-one thousand, seven hundred seventy-three".