11771204289 has 16 divisors (see below), whose sum is σ = 16904893824. Its totient is φ = 7242681600.

The previous prime is 11771204267. The next prime is 11771204317. The reversal of 11771204289 is 98240217711.

It is not a de Polignac number, because 11771204289 - 2¹² = 11771200193 is a prime.

It is a super-2 number, since 2×11771204289² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11771204289.

It is not an unprimeable number, because it can be changed into a prime (11771204189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276169 + ... + 315929.

It is an arithmetic number, because the mean of its divisors is an integer number (1056555864).

Almost surely, 2^11771204289 is an apocalyptic number.

It is an amenable number.

11771204289 is a deficient number, since it is larger than the sum of its proper divisors (5133689535).

11771204289 is a wasteful number, since it uses less digits than its factorization.

11771204289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47368.

The product of its (nonzero) digits is 56448, while the sum is 42.

The spelling of 11771204289 in words is "eleven billion, seven hundred seventy-one million, two hundred four thousand, two hundred eighty-nine".