42754067761 has 2 divisors, whose sum is σ = 42754067762. Its totient is φ = 42754067760.

The previous prime is 42754067743. The next prime is 42754067791. The reversal of 42754067761 is 16776045724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42171086736 + 582981025 = 205356^2 + 24145^2 .

It is a cyclic number.

It is not a de Polignac number, because 42754067761 - 2¹⁷ = 42753936689 is a prime.

It is a super-2 number, since 2×42754067761² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42754067711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21377033880 + 21377033881.

It is an arithmetic number, because the mean of its divisors is an integer number (21377033881).

Almost surely, 2^42754067761 is an apocalyptic number.

It is an amenable number.

42754067761 is a deficient number, since it is larger than the sum of its proper divisors (1).

42754067761 is an equidigital number, since it uses as much as digits as its factorization.

42754067761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 42754067761 in words is "forty-two billion, seven hundred fifty-four million, sixty-seven thousand, seven hundred sixty-one".