950849279981 has 2 divisors, whose sum is σ = 950849279982. Its totient is φ = 950849279980.

The previous prime is 950849279867. The next prime is 950849280023. The reversal of 950849279981 is 189972948059.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927205297225 + 23643982756 = 962915^2 + 153766^2 .

It is a cyclic number.

It is not a de Polignac number, because 950849279981 - 2²² = 950845085677 is a prime.

It is a super-2 number, since 2×950849279981² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (950849479981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475424639990 + 475424639991.

It is an arithmetic number, because the mean of its divisors is an integer number (475424639991).

Almost surely, 2^950849279981 is an apocalyptic number.

It is an amenable number.

950849279981 is a deficient number, since it is larger than the sum of its proper divisors (1).

950849279981 is an equidigital number, since it uses as much as digits as its factorization.

950849279981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117573120, while the sum is 71.

The spelling of 950849279981 in words is "nine hundred fifty billion, eight hundred forty-nine million, two hundred seventy-nine thousand, nine hundred eighty-one".