19974234945312 has 60 divisors (see below), whose sum is σ = 58743670141926. Its totient is φ = 6658078314240.

The previous prime is 19974234945289. The next prime is 19974234945347. The reversal of 19974234945312 is 21354943247991.

19974234945312 is a `hidden beast` number, since 1 + 9 + 9 + 7 + 4 + 2 + 3 + 4 + 94 + 531 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14589069150096 + 5385165795216 = 3819564^2 + 2320596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19974234945312.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3853051989 + ... + 3853057172.

Almost surely, 2^{19974234945312} is an apocalyptic number.

19974234945312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19974234945312 is an abundant number, since it is smaller than the sum of its proper divisors (38769435196614).

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

19974234945312 is an equidigital number, since it uses as much as digits as its factorization.

19974234945312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706109183 (or 7706109166 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 19974234945312 in words is "nineteen trillion, nine hundred seventy-four billion, two hundred thirty-four million, nine hundred forty-five thousand, three hundred twelve".