26510678041 has 3 divisors (see below), whose sum is σ = 26510840863. Its totient is φ = 26510515220.

The previous prime is 26510678011. The next prime is 26510678083. The reversal of 26510678041 is 14087601562.

The square root of 26510678041 is 162821.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 12316338441 + 14194339600 = 110979^2 + 119140^2 .

It is not a de Polignac number, because 26510678041 - 2¹⁷ = 26510546969 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26510677985 and 26510678003.

It is not an unprimeable number, because it can be changed into a prime (26510678011) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 81411 + ... + 244231.

Almost surely, 2^26510678041 is an apocalyptic number.

26510678041 is the 162821-st square number.

26510678041 is the 81411-st centered octagonal number.

It is an amenable number.

26510678041 is a deficient number, since it is larger than the sum of its proper divisors (162822).

26510678041 is an frugal number, since it uses more digits than its factorization.

26510678041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325642 (or 162821 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 26510678041 in words is "twenty-six billion, five hundred ten million, six hundred seventy-eight thousand, forty-one".