11977845659 has 8 divisors (see below), whose sum is σ = 12964699440. Its totient is φ = 11000346336.

The previous prime is 11977845643. The next prime is 11977845661. The reversal of 11977845659 is 95654877911.

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 11977845659 - 2⁴ = 11977845643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11977845629) 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, 2335949 + ... + 2341070.

It is an arithmetic number, because the mean of its divisors is an integer number (1620587430).

Almost surely, 2^11977845659 is an apocalyptic number.

11977845659 is a deficient number, since it is larger than the sum of its proper divisors (986853781).

11977845659 is a wasteful number, since it uses less digits than its factorization.

11977845659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677229.

The product of its digits is 19051200, while the sum is 62.

The spelling of 11977845659 in words is "eleven billion, nine hundred seventy-seven million, eight hundred forty-five thousand, six hundred fifty-nine".