19974773263312 has 20 divisors (see below), whose sum is σ = 44229855083296. Its totient is φ = 8560617112800.

The previous prime is 19974773263279. The next prime is 19974773263351. The reversal of 19974773263312 is 21336237747991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89173094814 + ... + 89173095037.

Almost surely, 2^{19974773263312} is an apocalyptic number.

It is an amenable number.

19974773263312 is an abundant number, since it is smaller than the sum of its proper divisors (24255081819984).

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

19974773263312 is a wasteful number, since it uses less digits than its factorization.

19974773263312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178346189866 (or 178346189860 counting only the distinct ones).

The product of its digits is 72013536, while the sum is 64.

The spelling of 19974773263312 in words is "nineteen trillion, nine hundred seventy-four billion, seven hundred seventy-three million, two hundred sixty-three thousand, three hundred twelve".