133381444450 has 48 divisors (see below), whose sum is σ = 248983501536. Its totient is φ = 53160681600.

The previous prime is 133381444447. The next prime is 133381444453. The reversal of 133381444450 is 54444183331.

It is an interprime number because it is at equal distance from previous prime (133381444447) and next prime (133381444453).

It is not an unprimeable number, because it can be changed into a prime (133381444453) 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 23 ways as a sum of consecutive naturals, for example, 16746169 + ... + 16754131.

It is an arithmetic number, because the mean of its divisors is an integer number (5187156282).

Almost surely, 2^133381444450 is an apocalyptic number.

133381444450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133381444450 is a deficient number, since it is larger than the sum of its proper divisors (115602057086).

133381444450 is a wasteful number, since it uses less digits than its factorization.

133381444450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9139 (or 9134 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 133381444450 in words is "one hundred thirty-three billion, three hundred eighty-one million, four hundred forty-four thousand, four hundred fifty".