1950664717 has 2 divisors, whose sum is σ = 1950664718. Its totient is φ = 1950664716.

The previous prime is 1950664699. The next prime is 1950664777. The reversal of 1950664717 is 7174660591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1891467081 + 59197636 = 43491^2 + 7694^2 .

It is a cyclic number.

It is not a de Polignac number, because 1950664717 - 2¹¹ = 1950662669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1950664777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975332358 + 975332359.

It is an arithmetic number, because the mean of its divisors is an integer number (975332359).

Almost surely, 2^1950664717 is an apocalyptic number.

It is an amenable number.

1950664717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1950664717 is an equidigital number, since it uses as much as digits as its factorization.

1950664717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 1950664717 is about 44166.3301282776. The cubic root of 1950664717 is about 1249.4749190896.

The spelling of 1950664717 in words is "one billion, nine hundred fifty million, six hundred sixty-four thousand, seven hundred seventeen".