26506565248 has 16 divisors (see below), whose sum is σ = 52806048210. Its totient is φ = 13253282560.

The previous prime is 26506565243. The next prime is 26506565251. The reversal of 26506565248 is 84256560562.

It can be written as a sum of positive squares in only one way, i.e., 14823549504 + 11683015744 = 121752^2 + 108088^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (26506565243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103541143 + ... + 103541398.

Almost surely, 2^26506565248 is an apocalyptic number.

It is an amenable number.

26506565248 is a deficient number, since it is larger than the sum of its proper divisors (26299482962).

26506565248 is an equidigital number, since it uses as much as digits as its factorization.

26506565248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207082555 (or 207082543 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 26506565248 in words is "twenty-six billion, five hundred six million, five hundred sixty-five thousand, two hundred forty-eight".