1329073012500 has 72 divisors (see below), whose sum is σ = 3876214968864. Its totient is φ = 354419460000.

The previous prime is 1329073012489. The next prime is 1329073012513. The reversal of 1329073012500 is 52103709231.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 17683474 + ... + 17758473.

It is an arithmetic number, because the mean of its divisors is an integer number (53836319012).

Almost surely, 2^{1329073012500} is an apocalyptic number.

1329073012500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329073012500 is an abundant number, since it is smaller than the sum of its proper divisors (2547141956364).

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

1329073012500 is an equidigital number, since it uses as much as digits as its factorization.

1329073012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35441979 (or 35441957 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The spelling of 1329073012500 in words is "one trillion, three hundred twenty-nine billion, seventy-three million, twelve thousand, five hundred".