11773396385 has 4 divisors (see below), whose sum is σ = 14128075668. Its totient is φ = 9418717104.

The previous prime is 11773396363. The next prime is 11773396471. The reversal of 11773396385 is 58369337711.

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 1465664656 + 10307731729 = 38284^2 + 101527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11773396385 is a prime.

It is a super-2 number, since 2×11773396385² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177339634 + ... + 1177339643.

It is an arithmetic number, because the mean of its divisors is an integer number (3532018917).

Almost surely, 2^11773396385 is an apocalyptic number.

It is an amenable number.

11773396385 is a deficient number, since it is larger than the sum of its proper divisors (2354679283).

11773396385 is an equidigital number, since it uses as much as digits as its factorization.

11773396385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354679282.

The product of its digits is 2857680, while the sum is 53.

The spelling of 11773396385 in words is "eleven billion, seven hundred seventy-three million, three hundred ninety-six thousand, three hundred eighty-five".