14011221977 has 2 divisors, whose sum is σ = 14011221978. Its totient is φ = 14011221976.

The previous prime is 14011221967. The next prime is 14011222009. The reversal of 14011221977 is 77912211041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11408589721 + 2602632256 = 106811^2 + 51016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14011221977 is a prime.

It is not a weakly prime, because it can be changed into another prime (14011221937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7005610988 + 7005610989.

It is an arithmetic number, because the mean of its divisors is an integer number (7005610989).

Almost surely, 2^14011221977 is an apocalyptic number.

It is an amenable number.

14011221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

14011221977 is an equidigital number, since it uses as much as digits as its factorization.

14011221977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 35.

The spelling of 14011221977 in words is "fourteen billion, eleven million, two hundred twenty-one thousand, nine hundred seventy-seven".