12830257535538 has 32 divisors (see below), whose sum is σ = 25710486307200. Its totient is φ = 4268427937280.

The previous prime is 12830257535507. The next prime is 12830257535621. The reversal of 12830257535538 is 83553575203821.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12506008 + ... + 13492988.

It is an arithmetic number, because the mean of its divisors is an integer number (803452697100).

Almost surely, 2^{12830257535538} is an apocalyptic number.

12830257535538 is an abundant number, since it is smaller than the sum of its proper divisors (12880228771662).

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

12830257535538 is a wasteful number, since it uses less digits than its factorization.

12830257535538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991202.

The product of its (nonzero) digits is 30240000, while the sum is 57.

The spelling of 12830257535538 in words is "twelve trillion, eight hundred thirty billion, two hundred fifty-seven million, five hundred thirty-five thousand, five hundred thirty-eight".