42012433245049 has 2 divisors, whose sum is σ = 42012433245050. Its totient is φ = 42012433245048.

The previous prime is 42012433244989. The next prime is 42012433245151. The reversal of 42012433245049 is 94054233421024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23640648487225 + 18371784757824 = 4862165^2 + 4286232^2 .

It is a cyclic number.

It is not a de Polignac number, because 42012433245049 - 2³¹ = 42010285761401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42012433244996 and 42012433245014.

It is not a weakly prime, because it can be changed into another prime (42012433245949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21006216622524 + 21006216622525.

It is an arithmetic number, because the mean of its divisors is an integer number (21006216622525).

Almost surely, 2^{42012433245049} is an apocalyptic number.

It is an amenable number.

42012433245049 is a deficient number, since it is larger than the sum of its proper divisors (1).

42012433245049 is an equidigital number, since it uses as much as digits as its factorization.

42012433245049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 42012433245049 in words is "forty-two trillion, twelve billion, four hundred thirty-three million, two hundred forty-five thousand, forty-nine".