42204142457 has 2 divisors, whose sum is σ = 42204142458. Its totient is φ = 42204142456.

The previous prime is 42204142439. The next prime is 42204142459. The reversal of 42204142457 is 75424140224.

42204142457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41611512121 + 592630336 = 203989^2 + 24344^2 .

It is a cyclic number.

It is not a de Polignac number, because 42204142457 - 2¹⁴ = 42204126073 is a prime.

Together with 42204142459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42204142459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21102071228 + 21102071229.

It is an arithmetic number, because the mean of its divisors is an integer number (21102071229).

Almost surely, 2^42204142457 is an apocalyptic number.

It is an amenable number.

42204142457 is a deficient number, since it is larger than the sum of its proper divisors (1).

42204142457 is an equidigital number, since it uses as much as digits as its factorization.

42204142457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 35.

The spelling of 42204142457 in words is "forty-two billion, two hundred four million, one hundred forty-two thousand, four hundred fifty-seven".