19972192737312 has 36 divisors (see below), whose sum is σ = 56795923097550. Its totient is φ = 6657397579008.

The previous prime is 19972192737269. The next prime is 19972192737383. The reversal of 19972192737312 is 21373729127991.

19972192737312 is a `hidden beast` number, since 1 + 9 + 9 + 72 + 192 + 7 + 373 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15004126202256 + 4968066535056 = 3873516^2 + 2228916^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19972192737312.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34673945437 + ... + 34673946012.

Almost surely, 2^{19972192737312} is an apocalyptic number.

19972192737312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19972192737312 is an abundant number, since it is smaller than the sum of its proper divisors (36823730360238).

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

19972192737312 is a wasteful number, since it uses less digits than its factorization.

19972192737312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69347891465 (or 69347891454 counting only the distinct ones).

The product of its digits is 18003384, while the sum is 63.

The spelling of 19972192737312 in words is "nineteen trillion, nine hundred seventy-two billion, one hundred ninety-two million, seven hundred thirty-seven thousand, three hundred twelve".