12442774605 has 16 divisors (see below), whose sum is σ = 19938942720. Its totient is φ = 6625978688.

The previous prime is 12442774499. The next prime is 12442774607. The reversal of 12442774605 is 50647724421.

It is a cyclic number.

It is not a de Polignac number, because 12442774605 - 2¹¹ = 12442772557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442774607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625365 + ... + 644954.

It is an arithmetic number, because the mean of its divisors is an integer number (1246183920).

Almost surely, 2^12442774605 is an apocalyptic number.

12442774605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12442774605 is a deficient number, since it is larger than the sum of its proper divisors (7496168115).

12442774605 is a wasteful number, since it uses less digits than its factorization.

12442774605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270980.

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 12442774605 in words is "twelve billion, four hundred forty-two million, seven hundred seventy-four thousand, six hundred five".