42442142023049 has 2 divisors, whose sum is σ = 42442142023050. Its totient is φ = 42442142023048.

The previous prime is 42442142022983. The next prime is 42442142023063. The reversal of 42442142023049 is 94032024124424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26616385037449 + 15825756985600 = 5159107^2 + 3978160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42442142023049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42442142022997 and 42442142023015.

It is not a weakly prime, because it can be changed into another prime (42442142023079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221071011524 + 21221071011525.

It is an arithmetic number, because the mean of its divisors is an integer number (21221071011525).

Almost surely, 2^{42442142023049} is an apocalyptic number.

It is an amenable number.

42442142023049 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442142023049 is an equidigital number, since it uses as much as digits as its factorization.

42442142023049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 42442142023049 in words is "forty-two trillion, four hundred forty-two billion, one hundred forty-two million, twenty-three thousand, forty-nine".