42334413257 has 2 divisors, whose sum is σ = 42334413258. Its totient is φ = 42334413256.

The previous prime is 42334413197. The next prime is 42334413281. The reversal of 42334413257 is 75231443324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31094384896 + 11240028361 = 176336^2 + 106019^2 .

It is a cyclic number.

It is not a de Polignac number, because 42334413257 - 2²⁰ = 42333364681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42334413257.

It is not a weakly prime, because it can be changed into another prime (42334443257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21167206628 + 21167206629.

It is an arithmetic number, because the mean of its divisors is an integer number (21167206629).

Almost surely, 2^42334413257 is an apocalyptic number.

It is an amenable number.

42334413257 is a deficient number, since it is larger than the sum of its proper divisors (1).

42334413257 is an equidigital number, since it uses as much as digits as its factorization.

42334413257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 38.

The spelling of 42334413257 in words is "forty-two billion, three hundred thirty-four million, four hundred thirteen thousand, two hundred fifty-seven".