650940004849 has 2 divisors, whose sum is σ = 650940004850. Its totient is φ = 650940004848.

The previous prime is 650940004837. The next prime is 650940004931. The reversal of 650940004849 is 948400049056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486829943824 + 164110061025 = 697732^2 + 405105^2 .

It is a cyclic number.

It is not a de Polignac number, because 650940004849 - 2¹⁷ = 650939873777 is a prime.

It is a super-2 number, since 2×650940004849² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (650940002849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325470002424 + 325470002425.

It is an arithmetic number, because the mean of its divisors is an integer number (325470002425).

Almost surely, 2^650940004849 is an apocalyptic number.

It is an amenable number.

650940004849 is a deficient number, since it is larger than the sum of its proper divisors (1).

650940004849 is an equidigital number, since it uses as much as digits as its factorization.

650940004849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 650940004849 in words is "six hundred fifty billion, nine hundred forty million, four thousand, eight hundred forty-nine".