26636117118361 has 9 divisors (see below), whose sum is σ = 27375665058399. Its totient is φ = 25916036264424.

The previous prime is 26636117118349. The next prime is 26636117118383. The reversal of 26636117118361 is 16381171163662.

The square root of 26636117118361 is 5161019.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23834363382025 + 2801753736336 = 4882045^2 + 1673844^2 .

It is not a de Polignac number, because 26636117118361 - 2³⁹ = 26086361304473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26636117118299 and 26636117118308.

It is not an unprimeable number, because it can be changed into a prime (26636117118311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 190887960 + ... + 191027446.

Almost surely, 2^{26636117118361} is an apocalyptic number.

26636117118361 is the 5161019-th square number.

26636117118361 is the 2580510-th centered octagonal number.

It is an amenable number.

26636117118361 is a deficient number, since it is larger than the sum of its proper divisors (739547940038).

26636117118361 is an frugal number, since it uses more digits than its factorization.

26636117118361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279048 (or 139524 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The spelling of 26636117118361 in words is "twenty-six trillion, six hundred thirty-six billion, one hundred seventeen million, one hundred eighteen thousand, three hundred sixty-one".