12444741136 has 25 divisors (see below), whose sum is σ = 24256937071. Its totient is φ = 6185110864.

The previous prime is 12444741131. The next prime is 12444741137. The reversal of 12444741136 is 63114744421.

The square root of 12444741136 is 111556.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12444741095 and 12444741104.

It is not an unprimeable number, because it can be changed into a prime (12444741131) by changing a digit.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 74519325 + ... + 74519491.

Almost surely, 2^12444741136 is an apocalyptic number.

12444741136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12444741136 is the 111556-th square number.

It is an amenable number.

12444741136 is a deficient number, since it is larger than the sum of its proper divisors (11812195935).

12444741136 is an frugal number, since it uses more digits than its factorization.

12444741136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 169 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The spelling of 12444741136 in words is "twelve billion, four hundred forty-four million, seven hundred forty-one thousand, one hundred thirty-six".