12234556779 has 12 divisors (see below), whose sum is σ = 17216496936. Its totient is φ = 7727087808.

The previous prime is 12234556777. The next prime is 12234556783. The reversal of 12234556779 is 97765543221.

It is not a de Polignac number, because 12234556779 - 2¹ = 12234556777 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12234556777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5647374 + ... + 5649539.

It is an arithmetic number, because the mean of its divisors is an integer number (1434708078).

Almost surely, 2^12234556779 is an apocalyptic number.

12234556779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12234556779 is a deficient number, since it is larger than the sum of its proper divisors (4981940157).

12234556779 is a wasteful number, since it uses less digits than its factorization.

12234556779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11296954 (or 11296935 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 51.

The spelling of 12234556779 in words is "twelve billion, two hundred thirty-four million, five hundred fifty-six thousand, seven hundred seventy-nine".