949581205983 has 12 divisors (see below), whose sum is σ = 1452300668208. Its totient is φ = 595815658560.

The previous prime is 949581205973. The next prime is 949581205987. The reversal of 949581205983 is 389502185949.

949581205983 is a `hidden beast` number, since 9 + 49 + 581 + 2 + 0 + 5 + 9 + 8 + 3 = 666.

It is not a de Polignac number, because 949581205983 - 2¹⁰ = 949581204959 is a prime.

It is a super-2 number, since 2×949581205983² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 949581205983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949581205987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3103206403 + ... + 3103206708.

It is an arithmetic number, because the mean of its divisors is an integer number (121025055684).

Almost surely, 2^949581205983 is an apocalyptic number.

949581205983 is a deficient number, since it is larger than the sum of its proper divisors (502719462225).

949581205983 is a wasteful number, since it uses less digits than its factorization.

949581205983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206413134 (or 6206413131 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 949581205983 in words is "nine hundred forty-nine billion, five hundred eighty-one million, two hundred five thousand, nine hundred eighty-three".