26810460121 has 9 divisors (see below), whose sum is σ = 27194882079. Its totient is φ = 26431404336.

The previous prime is 26810460097. The next prime is 26810460133. The reversal of 26810460121 is 12106401862.

The square root of 26810460121 is 163739.

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., 15218923225 + 11591536896 = 123365^2 + 107664^2 .

It is not a de Polignac number, because 26810460121 - 2²¹ = 26808362969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26810460191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11951826 + ... + 11954068.

Almost surely, 2^26810460121 is an apocalyptic number.

26810460121 is the 163739-th square number.

26810460121 is the 81870-th centered octagonal number.

It is an amenable number.

26810460121 is a deficient number, since it is larger than the sum of its proper divisors (384421958).

26810460121 is an frugal number, since it uses more digits than its factorization.

26810460121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632 (or 2316 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

Adding to 26810460121 its reverse (12106401862), we get a palindrome (38916861983).

The spelling of 26810460121 in words is "twenty-six billion, eight hundred ten million, four hundred sixty thousand, one hundred twenty-one".