26004788061121 has 9 divisors (see below), whose sum is σ = 26029436827233. Its totient is φ = 25980162628740.

The previous prime is 26004788061089. The next prime is 26004788061127. The reversal of 26004788061121 is 12116088740062.

The square root of 26004788061121 is 5099489.

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

It is not a de Polignac number, because 26004788061121 - 2⁵ = 26004788061089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26004788061127) 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, 7950101716 + ... + 7950104986.

Almost surely, 2^{26004788061121} is an apocalyptic number.

26004788061121 is the 5099489-th square number.

26004788061121 is the 2549745-th centered octagonal number.

It is an amenable number.

26004788061121 is a deficient number, since it is larger than the sum of its proper divisors (24648766112).

26004788061121 is an frugal number, since it uses more digits than its factorization.

26004788061121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 26004788061121 in words is "twenty-six trillion, four billion, seven hundred eighty-eight million, sixty-one thousand, one hundred twenty-one".