26004428261 has 8 divisors (see below), whose sum is σ = 31283522880. Its totient is φ = 21116377728.

The previous prime is 26004428251. The next prime is 26004428269. The reversal of 26004428261 is 16282440062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26004428261 - 2¹⁰ = 26004427237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26004428269) 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 7 ways as a sum of consecutive naturals, for example, 97760876 + ... + 97761141.

It is an arithmetic number, because the mean of its divisors is an integer number (3910440360).

Almost surely, 2^26004428261 is an apocalyptic number.

It is an amenable number.

26004428261 is a deficient number, since it is larger than the sum of its proper divisors (5279094619).

26004428261 is a wasteful number, since it uses less digits than its factorization.

26004428261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195522043.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 26004428261 in words is "twenty-six billion, four million, four hundred twenty-eight thousand, two hundred sixty-one".