133802405872 has 80 divisors (see below), whose sum is σ = 275768064000. Its totient is φ = 62712444672.

The previous prime is 133802405839. The next prime is 133802405881. The reversal of 133802405872 is 278504208331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28594029 + ... + 28598707.

It is an arithmetic number, because the mean of its divisors is an integer number (3447100800).

Almost surely, 2^133802405872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133802405872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137884032000).

133802405872 is an abundant number, since it is smaller than the sum of its proper divisors (141965658128).

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

133802405872 is a wasteful number, since it uses less digits than its factorization.

133802405872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 133802405872 in words is "one hundred thirty-three billion, eight hundred two million, four hundred five thousand, eight hundred seventy-two".