42245867513 has 2 divisors, whose sum is σ = 42245867514. Its totient is φ = 42245867512.

The previous prime is 42245867501. The next prime is 42245867539. The reversal of 42245867513 is 31576854224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42241758784 + 4108729 = 205528^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 42245867513 - 2²⁶ = 42178758649 is a prime.

It is not a weakly prime, because it can be changed into another prime (42245867593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21122933756 + 21122933757.

It is an arithmetic number, because the mean of its divisors is an integer number (21122933757).

Almost surely, 2^42245867513 is an apocalyptic number.

It is an amenable number.

42245867513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42245867513 is an equidigital number, since it uses as much as digits as its factorization.

42245867513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 47.

The spelling of 42245867513 in words is "forty-two billion, two hundred forty-five million, eight hundred sixty-seven thousand, five hundred thirteen".