26199280947841 has 4 divisors (see below), whose sum is σ = 26628777356884. Its totient is φ = 25769784538800.

The previous prime is 26199280947803. The next prime is 26199280947899. The reversal of 26199280947841 is 14874908299162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6523447242816 + 19675833705025 = 2554104^2 + 4435745^2 .

It is a cyclic number.

It is not a de Polignac number, because 26199280947841 - 2¹⁷ = 26199280816769 is a prime.

It is a super-2 number, since 2×26199280947841² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26199280947941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214748204430 + ... + 214748204551.

It is an arithmetic number, because the mean of its divisors is an integer number (6657194339221).

Almost surely, 2^{26199280947841} is an apocalyptic number.

It is an amenable number.

26199280947841 is a deficient number, since it is larger than the sum of its proper divisors (429496409043).

26199280947841 is an equidigital number, since it uses as much as digits as its factorization.

26199280947841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429496409042.

The product of its (nonzero) digits is 125411328, while the sum is 70.

The spelling of 26199280947841 in words is "twenty-six trillion, one hundred ninety-nine billion, two hundred eighty million, nine hundred forty-seven thousand, eight hundred forty-one".