9950642886637 has 2 divisors, whose sum is σ = 9950642886638. Its totient is φ = 9950642886636.

The previous prime is 9950642886607. The next prime is 9950642886643. The reversal of 9950642886637 is 7366882460599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9219354522921 + 731288363716 = 3036339^2 + 855154^2 .

It is a cyclic number.

It is not a de Polignac number, because 9950642886637 - 2¹⁵ = 9950642853869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9950642886637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9950642886607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4975321443318 + 4975321443319.

It is an arithmetic number, because the mean of its divisors is an integer number (4975321443319).

Almost surely, 2^{9950642886637} is an apocalyptic number.

It is an amenable number.

9950642886637 is a deficient number, since it is larger than the sum of its proper divisors (1).

9950642886637 is an equidigital number, since it uses as much as digits as its factorization.

9950642886637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940584960, while the sum is 73.

The spelling of 9950642886637 in words is "nine trillion, nine hundred fifty billion, six hundred forty-two million, eight hundred eighty-six thousand, six hundred thirty-seven".