11771534977 has 8 divisors (see below), whose sum is σ = 12033504000. Its totient is φ = 11510045664.

The previous prime is 11771534959. The next prime is 11771534989. The reversal of 11771534977 is 77943517711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11771534977 - 2¹⁹ = 11771010689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11771534377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70077 + ... + 168682.

It is an arithmetic number, because the mean of its divisors is an integer number (1504188000).

Almost surely, 2^11771534977 is an apocalyptic number.

It is an amenable number.

11771534977 is a deficient number, since it is larger than the sum of its proper divisors (261969023).

11771534977 is a wasteful number, since it uses less digits than its factorization.

11771534977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239855.

The product of its digits is 1296540, while the sum is 52.

The spelling of 11771534977 in words is "eleven billion, seven hundred seventy-one million, five hundred thirty-four thousand, nine hundred seventy-seven".