12248025779 has 16 divisors (see below), whose sum is σ = 13670200320. Its totient is φ = 10880213760.

The previous prime is 12248025773. The next prime is 12248025799. The reversal of 12248025779 is 97752084221.

It is a cyclic number.

It is not a de Polignac number, because 12248025779 - 2¹² = 12248021683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12248025773) 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, 11642 + ... + 156944.

It is an arithmetic number, because the mean of its divisors is an integer number (854387520).

Almost surely, 2^12248025779 is an apocalyptic number.

12248025779 is a deficient number, since it is larger than the sum of its proper divisors (1422174541).

12248025779 is a wasteful number, since it uses less digits than its factorization.

12248025779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145490.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 12248025779 in words is "twelve billion, two hundred forty-eight million, twenty-five thousand, seven hundred seventy-nine".