12428245507 has 2 divisors, whose sum is σ = 12428245508. Its totient is φ = 12428245506.

The previous prime is 12428245457. The next prime is 12428245537. The reversal of 12428245507 is 70554282421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12428245507 is a prime.

It is a super-2 number, since 2×12428245507² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12428245507.

It is not a weakly prime, because it can be changed into another prime (12428245537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6214122753 + 6214122754.

It is an arithmetic number, because the mean of its divisors is an integer number (6214122754).

Almost surely, 2^12428245507 is an apocalyptic number.

12428245507 is a deficient number, since it is larger than the sum of its proper divisors (1).

12428245507 is an equidigital number, since it uses as much as digits as its factorization.

12428245507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 12428245507 in words is "twelve billion, four hundred twenty-eight million, two hundred forty-five thousand, five hundred seven".