422842740757 has 2 divisors, whose sum is σ = 422842740758. Its totient is φ = 422842740756.

The previous prime is 422842740721. The next prime is 422842740779. The reversal of 422842740757 is 757047248224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364992389316 + 57850351441 = 604146^2 + 240521^2 .

It is a cyclic number.

It is not a de Polignac number, because 422842740757 - 2⁷ = 422842740629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422842740787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211421370378 + 211421370379.

It is an arithmetic number, because the mean of its divisors is an integer number (211421370379).

Almost surely, 2^422842740757 is an apocalyptic number.

It is an amenable number.

422842740757 is a deficient number, since it is larger than the sum of its proper divisors (1).

422842740757 is an equidigital number, since it uses as much as digits as its factorization.

422842740757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7024640, while the sum is 52.

The spelling of 422842740757 in words is "four hundred twenty-two billion, eight hundred forty-two million, seven hundred forty thousand, seven hundred fifty-seven".