26280686424228 has 12 divisors (see below), whose sum is σ = 61321601656560. Its totient is φ = 8760228808072.

The previous prime is 26280686424221. The next prime is 26280686424241. The reversal of 26280686424228 is 82242468608262.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (26280686424221) 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, 1095028600998 + ... + 1095028601021.

It is an arithmetic number, because the mean of its divisors is an integer number (5110133471380).

Almost surely, 2^{26280686424228} is an apocalyptic number.

It is an amenable number.

26280686424228 is an abundant number, since it is smaller than the sum of its proper divisors (35040915232332).

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

26280686424228 is a wasteful number, since it uses less digits than its factorization.

26280686424228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190057202026 (or 2190057202024 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 60.

The spelling of 26280686424228 in words is "twenty-six trillion, two hundred eighty billion, six hundred eighty-six million, four hundred twenty-four thousand, two hundred twenty-eight".