42998264009 has 2 divisors, whose sum is σ = 42998264010. Its totient is φ = 42998264008.

The previous prime is 42998263969. The next prime is 42998264077. The reversal of 42998264009 is 90046289924.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28843927225 + 14154336784 = 169835^2 + 118972^2 .

It is a cyclic number.

It is not a de Polignac number, because 42998264009 - 2¹⁶ = 42998198473 is a prime.

It is not a weakly prime, because it can be changed into another prime (42998264209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21499132004 + 21499132005.

It is an arithmetic number, because the mean of its divisors is an integer number (21499132005).

Almost surely, 2^42998264009 is an apocalyptic number.

It is an amenable number.

42998264009 is a deficient number, since it is larger than the sum of its proper divisors (1).

42998264009 is an equidigital number, since it uses as much as digits as its factorization.

42998264009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 42998264009 in words is "forty-two billion, nine hundred ninety-eight million, two hundred sixty-four thousand, nine".