133546812399 has 240 divisors, whose sum is σ = 288696060576. Its totient is φ = 60267110400.

The previous prime is 133546812379. The next prime is 133546812409. The reversal of 133546812399 is 993218645331.

133546812399 is a `hidden beast` number, since 1 + 3 + 3 + 546 + 8 + 1 + 2 + 3 + 99 = 666.

It is not a de Polignac number, because 133546812399 - 2¹² = 133546808303 is a prime.

It is a super-2 number, since 2×133546812399² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133546812379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 9641719 + ... + 9655559.

Almost surely, 2^133546812399 is an apocalyptic number.

133546812399 is an abundant number, since it is smaller than the sum of its proper divisors (155149248177).

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

133546812399 is a wasteful number, since it uses less digits than its factorization.

133546812399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13908 (or 13892 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 133546812399 in words is "one hundred thirty-three billion, five hundred forty-six million, eight hundred twelve thousand, three hundred ninety-nine".