26440200260 has 12 divisors (see below), whose sum is σ = 55524420588. Its totient is φ = 10576080096.

The previous prime is 26440200221. The next prime is 26440200263. The reversal of 26440200260 is 6200204462.

It can be written as a sum of positive squares in 2 ways, for example, as 7398408196 + 19041792064 = 86014^2 + 137992^2 .

It is not an unprimeable number, because it can be changed into a prime (26440200263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661004987 + ... + 661005026.

It is an arithmetic number, because the mean of its divisors is an integer number (4627035049).

Almost surely, 2^26440200260 is an apocalyptic number.

26440200260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26440200260 is an abundant number, since it is smaller than the sum of its proper divisors (29084220328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26440200260 is a wasteful number, since it uses less digits than its factorization.

26440200260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322010022 (or 1322010020 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 26440200260 in words is "twenty-six billion, four hundred forty million, two hundred thousand, two hundred sixty".