133481653872 has 40 divisors (see below), whose sum is σ = 394088693376. Its totient is φ = 38137615296.

The previous prime is 133481653871. The next prime is 133481653901. The reversal of 133481653872 is 278356184331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133481653871) 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, 198633078 + ... + 198633749.

Almost surely, 2^133481653872 is an apocalyptic number.

133481653872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133481653872 is an abundant number, since it is smaller than the sum of its proper divisors (260607039504).

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

133481653872 is a wasteful number, since it uses less digits than its factorization.

133481653872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397266845 (or 397266839 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 133481653872 in words is "one hundred thirty-three billion, four hundred eighty-one million, six hundred fifty-three thousand, eight hundred seventy-two".