42769713809 has 2 divisors, whose sum is σ = 42769713810. Its totient is φ = 42769713808.

The previous prime is 42769713803. The next prime is 42769713821. The reversal of 42769713809 is 90831796724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39333995584 + 3435718225 = 198328^2 + 58615^2 .

It is a cyclic number.

It is not a de Polignac number, because 42769713809 - 2¹² = 42769709713 is a prime.

It is not a weakly prime, because it can be changed into another prime (42769713803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21384856904 + 21384856905.

It is an arithmetic number, because the mean of its divisors is an integer number (21384856905).

Almost surely, 2^42769713809 is an apocalyptic number.

It is an amenable number.

42769713809 is a deficient number, since it is larger than the sum of its proper divisors (1).

42769713809 is an equidigital number, since it uses as much as digits as its factorization.

42769713809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 42769713809 in words is "forty-two billion, seven hundred sixty-nine million, seven hundred thirteen thousand, eight hundred nine".