12611008979 has 4 divisors (see below), whose sum is σ = 12728868984. Its totient is φ = 12493148976.

The previous prime is 12611008957. The next prime is 12611009009. The reversal of 12611008979 is 97980011621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12611008979 - 2¹² = 12611004883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12611008679) 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, 58929842 + ... + 58930055.

It is an arithmetic number, because the mean of its divisors is an integer number (3182217246).

Almost surely, 2^12611008979 is an apocalyptic number.

12611008979 is a deficient number, since it is larger than the sum of its proper divisors (117860005).

12611008979 is a wasteful number, since it uses less digits than its factorization.

12611008979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117860004.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 12611008979 in words is "twelve billion, six hundred eleven million, eight thousand, nine hundred seventy-nine".