42144426473 has 2 divisors, whose sum is σ = 42144426474. Its totient is φ = 42144426472.

The previous prime is 42144426451. The next prime is 42144426479. The reversal of 42144426473 is 37462444124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29026618384 + 13117808089 = 170372^2 + 114533^2 .

It is a cyclic number.

It is not a de Polignac number, because 42144426473 - 2⁸ = 42144426217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42144426473.

It is not a weakly prime, because it can be changed into another prime (42144426479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072213236 + 21072213237.

It is an arithmetic number, because the mean of its divisors is an integer number (21072213237).

Almost surely, 2^42144426473 is an apocalyptic number.

It is an amenable number.

42144426473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144426473 is an equidigital number, since it uses as much as digits as its factorization.

42144426473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 41.

The spelling of 42144426473 in words is "forty-two billion, one hundred forty-four million, four hundred twenty-six thousand, four hundred seventy-three".