11779073579881 has 4 divisors (see below), whose sum is σ = 11779085184592. Its totient is φ = 11779061975172.

The previous prime is 11779073579879. The next prime is 11779073579927. The reversal of 11779073579881 is 18897537097711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11779073579881 - 2¹ = 11779073579879 is a prime.

It is a super-2 number, since 2×11779073579881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11779073579681) 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, 4116555 + ... + 6364288.

It is an arithmetic number, because the mean of its divisors is an integer number (2944771296148).

Almost surely, 2^{11779073579881} is an apocalyptic number.

It is an amenable number.

11779073579881 is a deficient number, since it is larger than the sum of its proper divisors (11604711).

11779073579881 is a wasteful number, since it uses less digits than its factorization.

11779073579881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11604710.

The product of its (nonzero) digits is 186701760, while the sum is 73.

The spelling of 11779073579881 in words is "eleven trillion, seven hundred seventy-nine billion, seventy-three million, five hundred seventy-nine thousand, eight hundred eighty-one".