42774259289 has 2 divisors, whose sum is σ = 42774259290. Its totient is φ = 42774259288.

The previous prime is 42774259259. The next prime is 42774259321. The reversal of 42774259289 is 98295247724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39712518400 + 3061740889 = 199280^2 + 55333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42774259289 is a prime.

It is not a weakly prime, because it can be changed into another prime (42774259259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387129644 + 21387129645.

It is an arithmetic number, because the mean of its divisors is an integer number (21387129645).

Almost surely, 2^42774259289 is an apocalyptic number.

It is an amenable number.

42774259289 is a deficient number, since it is larger than the sum of its proper divisors (1).

42774259289 is an equidigital number, since it uses as much as digits as its factorization.

42774259289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 59.

The spelling of 42774259289 in words is "forty-two billion, seven hundred seventy-four million, two hundred fifty-nine thousand, two hundred eighty-nine".