13712919985216 has 21 divisors (see below), whose sum is σ = 27211634382439. Its totient is φ = 6856445180224.

The previous prime is 13712919985213. The next prime is 13712919985249. The reversal of 13712919985216 is 61258991921731.

The square root of 13712919985216 is 3703096.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13712919985211) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29393325 + ... + 29856211.

Almost surely, 2^{13712919985216} is an apocalyptic number.

13712919985216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13712919985216 is the 3703096-th square number.

It is an amenable number.

13712919985216 is a deficient number, since it is larger than the sum of its proper divisors (13498714397223).

13712919985216 is an frugal number, since it uses more digits than its factorization.

13712919985216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925786 (or 462889 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 64.

Multiplying 13712919985216 by its sum of digits (64), we get a square (877626879053824 = 29624768²).

13712919985216 divided by its sum of digits (64) gives a square (214264374769 = 462887²).

The spelling of 13712919985216 in words is "thirteen trillion, seven hundred twelve billion, nine hundred nineteen million, nine hundred eighty-five thousand, two hundred sixteen".