26548400945909 has 16 divisors (see below), whose sum is σ = 29595995815680. Its totient is φ = 23666481815040.

The previous prime is 26548400945897. The next prime is 26548400945917. The reversal of 26548400945909 is 90954900484562.

It is not a de Polignac number, because 26548400945909 - 2¹⁶ = 26548400880373 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 (26548400945959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7468664 + ... + 10434449.

It is an arithmetic number, because the mean of its divisors is an integer number (1849749738480).

Almost surely, 2^{26548400945909} is an apocalyptic number.

It is an amenable number.

26548400945909 is a deficient number, since it is larger than the sum of its proper divisors (3047594869771).

26548400945909 is a wasteful number, since it uses less digits than its factorization.

26548400945909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17907740.

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 26548400945909 in words is "twenty-six trillion, five hundred forty-eight billion, four hundred million, nine hundred forty-five thousand, nine hundred nine".