42242310761977 has 2 divisors, whose sum is σ = 42242310761978. Its totient is φ = 42242310761976.

The previous prime is 42242310761899. The next prime is 42242310762007. The reversal of 42242310761977 is 77916701324224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41120143425001 + 1122167336976 = 6412499^2 + 1059324^2 .

It is a cyclic number.

It is not a de Polignac number, because 42242310761977 - 2³⁹ = 41692554948089 is a prime.

It is a super-2 number, since 2×42242310761977² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42242310761477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121155380988 + 21121155380989.

It is an arithmetic number, because the mean of its divisors is an integer number (21121155380989).

Almost surely, 2^{42242310761977} is an apocalyptic number.

It is an amenable number.

42242310761977 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242310761977 is an equidigital number, since it uses as much as digits as its factorization.

42242310761977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 42242310761977 in words is "forty-two trillion, two hundred forty-two billion, three hundred ten million, seven hundred sixty-one thousand, nine hundred seventy-seven".