268725445906 has 4 divisors (see below), whose sum is σ = 403088168862. Its totient is φ = 134362722952.

The previous prime is 268725445829. The next prime is 268725445973. The reversal of 268725445906 is 609544527862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 149607277681 + 119118168225 = 386791^2 + 345135^2 .

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 as a sum of consecutive naturals, namely, 67181361475 + ... + 67181361478.

Almost surely, 2^268725445906 is an apocalyptic number.

268725445906 is a deficient number, since it is larger than the sum of its proper divisors (134362722956).

268725445906 is a wasteful number, since it uses less digits than its factorization.

268725445906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134362722955.

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 268725445906 in words is "two hundred sixty-eight billion, seven hundred twenty-five million, four hundred forty-five thousand, nine hundred six".