133889450008 has 32 divisors (see below), whose sum is σ = 262197651600. Its totient is φ = 64031409792.

The previous prime is 133889450003. The next prime is 133889450029. The reversal of 133889450008 is 800054988331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133889450003) 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, 3815835 + ... + 3850762.

Almost surely, 2^133889450008 is an apocalyptic number.

It is an amenable number.

133889450008 is a deficient number, since it is larger than the sum of its proper divisors (128308201592).

133889450008 is a wasteful number, since it uses less digits than its factorization.

133889450008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666699 (or 7666695 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 133889450008 in words is "one hundred thirty-three billion, eight hundred eighty-nine million, four hundred fifty thousand, eight".