133839722440 has 16 divisors (see below), whose sum is σ = 301139375580. Its totient is φ = 53535888960.

The previous prime is 133839722413. The next prime is 133839722449. The reversal of 133839722440 is 44227938331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115938888004 + 17900834436 = 340498^2 + 133794^2 .

It is not an unprimeable number, because it can be changed into a prime (133839722449) 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 3 ways as a sum of consecutive naturals, for example, 1672996491 + ... + 1672996570.

Almost surely, 2^133839722440 is an apocalyptic number.

133839722440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133839722440 is an abundant number, since it is smaller than the sum of its proper divisors (167299653140).

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

133839722440 is a wasteful number, since it uses less digits than its factorization.

133839722440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345993072 (or 3345993068 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 133839722440 in words is "one hundred thirty-three billion, eight hundred thirty-nine million, seven hundred twenty-two thousand, four hundred forty".