12958633428 has 24 divisors (see below), whose sum is σ = 32562720288. Its totient is φ = 3987271776.

The previous prime is 12958633409. The next prime is 12958633453. The reversal of 12958633428 is 82433685921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41533926 + ... + 41534237.

It is an arithmetic number, because the mean of its divisors is an integer number (1356780012).

Almost surely, 2^12958633428 is an apocalyptic number.

It is an amenable number.

12958633428 is an abundant number, since it is smaller than the sum of its proper divisors (19604086860).

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

12958633428 is a wasteful number, since it uses less digits than its factorization.

12958633428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83068183 (or 83068181 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 12958633428 in words is "twelve billion, nine hundred fifty-eight million, six hundred thirty-three thousand, four hundred twenty-eight".