266428000044 has 36 divisors (see below), whose sum is σ = 687799947744. Its totient is φ = 86919772512.

The previous prime is 266427999983. The next prime is 266428000057. The reversal of 266428000044 is 440000824662.

It is a happy number.

266428000044 is a `hidden beast` number, since 2 + 6 + 642 + 8 + 0 + 0 + 0 + 0 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 266427999972 and 266428000008.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 78729987 + ... + 78733370.

It is an arithmetic number, because the mean of its divisors is an integer number (19105554104).

Almost surely, 2^266428000044 is an apocalyptic number.

It is an amenable number.

266428000044 is an abundant number, since it is smaller than the sum of its proper divisors (421371947700).

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

266428000044 is a wasteful number, since it uses less digits than its factorization.

266428000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157463414 (or 157463409 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 266428000044 in words is "two hundred sixty-six billion, four hundred twenty-eight million, forty-four", and thus it is an aban number.