13798320022881 has 27 divisors (see below), whose sum is σ = 20022024272211. Its totient is φ = 9157016371824.

The previous prime is 13798320022831. The next prime is 13798320022961. The reversal of 13798320022881 is 18822002389731.

The square root of 13798320022881 is 3714609.

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

13798320022881 is a `hidden beast` number, since 1 + 3 + 7 + 98 + 320 + 0 + 228 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12851084995281 + 947235027600 = 3584841^2 + 973260^2 .

It is not a de Polignac number, because 13798320022881 - 2⁹ = 13798320022369 is a prime.

It is a super-2 number, since 2×13798320022881² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13798320022811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2551933680 + ... + 2551939086.

Almost surely, 2^{13798320022881} is an apocalyptic number.

13798320022881 is the 3714609-th square number.

13798320022881 is the 1857305-th centered octagonal number.

It is an amenable number.

13798320022881 is a deficient number, since it is larger than the sum of its proper divisors (6223704249330).

13798320022881 is an frugal number, since it uses more digits than its factorization.

13798320022881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278 (or 5639 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 13798320022881 in words is "thirteen trillion, seven hundred ninety-eight billion, three hundred twenty million, twenty-two thousand, eight hundred eighty-one".