42322127857 has 2 divisors, whose sum is σ = 42322127858. Its totient is φ = 42322127856.

The previous prime is 42322127831. The next prime is 42322127879. The reversal of 42322127857 is 75872122324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31564496896 + 10757630961 = 177664^2 + 103719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42322127857 is a prime.

It is not a weakly prime, because it can be changed into another prime (42322127557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21161063928 + 21161063929.

It is an arithmetic number, because the mean of its divisors is an integer number (21161063929).

Almost surely, 2^42322127857 is an apocalyptic number.

It is an amenable number.

42322127857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42322127857 is an equidigital number, since it uses as much as digits as its factorization.

42322127857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 43.

The spelling of 42322127857 in words is "forty-two billion, three hundred twenty-two million, one hundred twenty-seven thousand, eight hundred fifty-seven".