133693242128 has 10 divisors (see below), whose sum is σ = 259030656654. Its totient is φ = 66846621056.

The previous prime is 133693242101. The next prime is 133693242139. The reversal of 133693242128 is 821242396331.

It can be written as a sum of positive squares in only one way, i.e., 116780759824 + 16912482304 = 341732^2 + 130048^2 .

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 as a sum of consecutive naturals, namely, 4177913801 + ... + 4177913832.

Almost surely, 2^133693242128 is an apocalyptic number.

It is an amenable number.

133693242128 is a deficient number, since it is larger than the sum of its proper divisors (125337414526).

133693242128 is an equidigital number, since it uses as much as digits as its factorization.

133693242128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355827641 (or 8355827635 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The spelling of 133693242128 in words is "one hundred thirty-three billion, six hundred ninety-three million, two hundred forty-two thousand, one hundred twenty-eight".