133043643747 has 48 divisors (see below), whose sum is σ = 242768754720. Its totient is φ = 71552871936.

The previous prime is 133043643739. The next prime is 133043643787. The reversal of 133043643747 is 747346340331.

It is a happy number.

133043643747 is a `hidden beast` number, since 133 + 0 + 43 + 6 + 437 + 47 = 666.

It is not a de Polignac number, because 133043643747 - 2³ = 133043643739 is a prime.

It is a super-2 number, since 2×133043643747² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133043643787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2935218 + ... + 2980199.

It is an arithmetic number, because the mean of its divisors is an integer number (5057682390).

Almost surely, 2^133043643747 is an apocalyptic number.

133043643747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

133043643747 is a deficient number, since it is larger than the sum of its proper divisors (109725110973).

133043643747 is a wasteful number, since it uses less digits than its factorization.

133043643747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915457 (or 5915444 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 45.

The spelling of 133043643747 in words is "one hundred thirty-three billion, forty-three million, six hundred forty-three thousand, seven hundred forty-seven".