11381164773 has 48 divisors (see below), whose sum is σ = 17448697728. Its totient is φ = 6581238400.

The previous prime is 11381164759. The next prime is 11381164789. The reversal of 11381164773 is 37746118311.

It is a happy number.

It is not a de Polignac number, because 11381164773 - 2¹⁰ = 11381163749 is a prime.

It is a super-2 number, since 2×11381164773² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381164733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3847411 + ... + 3850367.

It is an arithmetic number, because the mean of its divisors is an integer number (363514536).

Almost surely, 2^11381164773 is an apocalyptic number.

It is an amenable number.

11381164773 is a deficient number, since it is larger than the sum of its proper divisors (6067532955).

11381164773 is a wasteful number, since it uses less digits than its factorization.

11381164773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466 (or 3455 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The spelling of 11381164773 in words is "eleven billion, three hundred eighty-one million, one hundred sixty-four thousand, seven hundred seventy-three".