26979712449 has 16 divisors (see below), whose sum is σ = 36216505344. Its totient is φ = 17864985600.

The previous prime is 26979712411. The next prime is 26979712469. The reversal of 26979712449 is 94421797962.

It is not a de Polignac number, because 26979712449 - 2¹⁵ = 26979679681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26979712392 and 26979712401.

It is not an unprimeable number, because it can be changed into a prime (26979712469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343137 + ... + 414369.

It is an arithmetic number, because the mean of its divisors is an integer number (2263531584).

Almost surely, 2^26979712449 is an apocalyptic number.

It is an amenable number.

26979712449 is a deficient number, since it is larger than the sum of its proper divisors (9236792895).

26979712449 is a wasteful number, since it uses less digits than its factorization.

26979712449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72088.

The product of its digits is 13716864, while the sum is 60.

The spelling of 26979712449 in words is "twenty-six billion, nine hundred seventy-nine million, seven hundred twelve thousand, four hundred forty-nine".