42397670573 has 2 divisors, whose sum is σ = 42397670574. Its totient is φ = 42397670572.

The previous prime is 42397670561. The next prime is 42397670611. The reversal of 42397670573 is 37507679324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40867452649 + 1530217924 = 202157^2 + 39118^2 .

It is a cyclic number.

It is not a de Polignac number, because 42397670573 - 2¹⁰ = 42397669549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42397670873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21198835286 + 21198835287.

It is an arithmetic number, because the mean of its divisors is an integer number (21198835287).

Almost surely, 2^42397670573 is an apocalyptic number.

It is an amenable number.

42397670573 is a deficient number, since it is larger than the sum of its proper divisors (1).

42397670573 is an equidigital number, since it uses as much as digits as its factorization.

42397670573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920, while the sum is 53.

The spelling of 42397670573 in words is "forty-two billion, three hundred ninety-seven million, six hundred seventy thousand, five hundred seventy-three".