12047696644 has 9 divisors (see below), whose sum is σ = 21083853301. Its totient is φ = 6023738560.

The previous prime is 12047696627. The next prime is 12047696657. The reversal of 12047696644 is 44669674021.

It is a happy number.

The square root of 12047696644 is 109762.

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

It can be written as a sum of positive squares in only one way, i.e., 658538244 + 11389158400 = 25662^2 + 106720^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 192084 + ... + 246964.

Almost surely, 2^12047696644 is an apocalyptic number.

12047696644 is the 109762-nd square number.

It is an amenable number.

12047696644 is a deficient number, since it is larger than the sum of its proper divisors (9036156657).

12047696644 is an frugal number, since it uses more digits than its factorization.

12047696644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109766 (or 54883 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

Multiplying 12047696644 by its sum of digits (49), we get a square (590337135556 = 768334²).

The spelling of 12047696644 in words is "twelve billion, forty-seven million, six hundred ninety-six thousand, six hundred forty-four".