266428231948 has 24 divisors (see below), whose sum is σ = 482348976480. Its totient is φ = 128614657920.

The previous prime is 266428231943. The next prime is 266428231957. The reversal of 266428231948 is 849132824662.

It is not an unprimeable number, because it can be changed into a prime (266428231943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3585088 + ... + 3658648.

It is an arithmetic number, because the mean of its divisors is an integer number (20097874020).

Almost surely, 2^266428231948 is an apocalyptic number.

It is an amenable number.

266428231948 is a deficient number, since it is larger than the sum of its proper divisors (215920744532).

266428231948 is a wasteful number, since it uses less digits than its factorization.

266428231948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104817 (or 104815 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 55.

The spelling of 266428231948 in words is "two hundred sixty-six billion, four hundred twenty-eight million, two hundred thirty-one thousand, nine hundred forty-eight".