14009105779877 has 4 divisors (see below), whose sum is σ = 15086729301420. Its totient is φ = 12931482258336.

The previous prime is 14009105779873. The next prime is 14009105779901. The reversal of 14009105779877 is 77897750190041.

It is a Cunningham number, because it is equal to 3742874²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2072350268356 + 11936755511521 = 1439566^2 + 3454961^2 .

It is a cyclic number.

It is not a de Polignac number, because 14009105779877 - 2² = 14009105779873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14009105779873) 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, 538811760752 + ... + 538811760777.

It is an arithmetic number, because the mean of its divisors is an integer number (3771682325355).

Almost surely, 2^{14009105779877} is an apocalyptic number.

It is an amenable number.

14009105779877 is a deficient number, since it is larger than the sum of its proper divisors (1077623521543).

14009105779877 is a wasteful number, since it uses less digits than its factorization.

14009105779877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077623521542.

The product of its (nonzero) digits is 31116960, while the sum is 65.

The spelling of 14009105779877 in words is "fourteen trillion, nine billion, one hundred five million, seven hundred seventy-nine thousand, eight hundred seventy-seven".