133538747888 has 240 divisors, whose sum is σ = 356097208320. Its totient is φ = 47101243392.

The previous prime is 133538747801. The next prime is 133538747893. The reversal of 133538747888 is 888747835331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7986545 + ... + 8003247.

It is an arithmetic number, because the mean of its divisors is an integer number (1483738368).

Almost surely, 2^133538747888 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 133538747888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178048604160).

133538747888 is an abundant number, since it is smaller than the sum of its proper divisors (222558460432).

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

133538747888 is a wasteful number, since it uses less digits than its factorization.

133538747888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16784 (or 16761 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 65.

The spelling of 133538747888 in words is "one hundred thirty-three billion, five hundred thirty-eight million, seven hundred forty-seven thousand, eight hundred eighty-eight".