133042436868 has 48 divisors (see below), whose sum is σ = 339612952896. Its totient is φ = 40201666560.

The previous prime is 133042436867. The next prime is 133042436881. The reversal of 133042436868 is 868634240331.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (133042436867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381021 + ... + 1474212.

It is an arithmetic number, because the mean of its divisors is an integer number (7075269852).

Almost surely, 2^133042436868 is an apocalyptic number.

It is an amenable number.

133042436868 is an abundant number, since it is smaller than the sum of its proper divisors (206570516028).

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

133042436868 is a wasteful number, since it uses less digits than its factorization.

133042436868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855604 (or 2855602 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 133042436868 in words is "one hundred thirty-three billion, forty-two million, four hundred thirty-six thousand, eight hundred sixty-eight".