26847141217 has 16 divisors (see below), whose sum is σ = 30645799632. Its totient is φ = 23299246080.

The previous prime is 26847141197. The next prime is 26847141221. The reversal of 26847141217 is 71214174862.

It can be written as a sum of positive squares in 8 ways, for example, as 218123361 + 26629017856 = 14769^2 + 163184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26847141217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26847141317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143413 + ... + 272509.

It is an arithmetic number, because the mean of its divisors is an integer number (1915362477).

Almost surely, 2^26847141217 is an apocalyptic number.

It is an amenable number.

26847141217 is a deficient number, since it is larger than the sum of its proper divisors (3798658415).

26847141217 is a wasteful number, since it uses less digits than its factorization.

26847141217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130068.

The product of its digits is 150528, while the sum is 43.

The spelling of 26847141217 in words is "twenty-six billion, eight hundred forty-seven million, one hundred forty-one thousand, two hundred seventeen".