133137928988388 has 72 divisors (see below), whose sum is σ = 342580798175616. Its totient is φ = 43587882777600.

The previous prime is 133137928988387. The next prime is 133137928988461. The reversal of 133137928988388 is 883889829731331.

133137928988388 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 379 + 2 + 8 + 98 + 83 + 88 = 666.

It is not an unprimeable number, because it can be changed into a prime (133137928988387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98355133 + ... + 99699588.

It is an arithmetic number, because the mean of its divisors is an integer number (4758066641328).

Almost surely, 2^{133137928988388} is an apocalyptic number.

133137928988388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133137928988388 is an abundant number, since it is smaller than the sum of its proper divisors (209442869187228).

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

133137928988388 is a wasteful number, since it uses less digits than its factorization.

133137928988388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198055065 (or 198055060 counting only the distinct ones).

The product of its digits is 3009871872, while the sum is 81.

The spelling of 133137928988388 in words is "one hundred thirty-three trillion, one hundred thirty-seven billion, nine hundred twenty-eight million, nine hundred eighty-eight thousand, three hundred eighty-eight".