12424724779 has 2 divisors, whose sum is σ = 12424724780. Its totient is φ = 12424724778.

The previous prime is 12424724759. The next prime is 12424724783. The reversal of 12424724779 is 97742742421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12424724779 - 2²¹ = 12422627627 is a prime.

It is not a weakly prime, because it can be changed into another prime (12424724759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212362389 + 6212362390.

It is an arithmetic number, because the mean of its divisors is an integer number (6212362390).

Almost surely, 2^12424724779 is an apocalyptic number.

12424724779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12424724779 is an equidigital number, since it uses as much as digits as its factorization.

12424724779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 49.

The spelling of 12424724779 in words is "twelve billion, four hundred twenty-four million, seven hundred twenty-four thousand, seven hundred seventy-nine".