133839646458 has 32 divisors (see below), whose sum is σ = 306542292480. Its totient is φ = 38162011440.

The previous prime is 133839646439. The next prime is 133839646459. The reversal of 133839646458 is 854646938331.

It is not an unprimeable number, because it can be changed into a prime (133839646459) 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, 3224448 + ... + 3265691.

It is an arithmetic number, because the mean of its divisors is an integer number (9579446640).

Almost surely, 2^133839646458 is an apocalyptic number.

133839646458 is an abundant number, since it is smaller than the sum of its proper divisors (172702646022).

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

133839646458 is a wasteful number, since it uses less digits than its factorization.

133839646458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490642.

The product of its digits is 44789760, while the sum is 60.

The spelling of 133839646458 in words is "one hundred thirty-three billion, eight hundred thirty-nine million, six hundred forty-six thousand, four hundred fifty-eight".