266828427725 has 12 divisors (see below), whose sum is σ = 332599545600. Its totient is φ = 212345132400.

The previous prime is 266828427707. The next prime is 266828427769. The reversal of 266828427725 is 527724828662.

266828427725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 266828427725 - 2³⁴ = 249648558541 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27935375 + ... + 27944924.

It is an arithmetic number, because the mean of its divisors is an integer number (27716628800).

Almost surely, 2^266828427725 is an apocalyptic number.

266828427725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266828427725 is a deficient number, since it is larger than the sum of its proper divisors (65771117875).

266828427725 is a wasteful number, since it uses less digits than its factorization.

266828427725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55880500 (or 55880495 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 59.

The spelling of 266828427725 in words is "two hundred sixty-six billion, eight hundred twenty-eight million, four hundred twenty-seven thousand, seven hundred twenty-five".