949827617281 has 3 divisors (see below), whose sum is σ = 949828591873. Its totient is φ = 949826642690.

The previous prime is 949827617269. The next prime is 949827617383. The reversal of 949827617281 is 182716728949.

The square root of 949827617281 is 974591.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 182716728949 = 59 ⋅3096893711.

It is not a de Polignac number, because 949827617281 - 2²⁵ = 949794062849 is a prime.

It is a super-2 number, since 2×949827617281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949827617201) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 487296 + ... + 1461886.

Almost surely, 2^949827617281 is an apocalyptic number.

949827617281 is the 974591-st square number.

949827617281 is the 487296-th centered octagonal number.

It is an amenable number.

949827617281 is a deficient number, since it is larger than the sum of its proper divisors (974592).

949827617281 is an frugal number, since it uses more digits than its factorization.

949827617281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949182 (or 974591 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 64.

Multiplying 949827617281 by its sum of digits (64), we get a square (60788967505984 = 7796728²).

The spelling of 949827617281 in words is "nine hundred forty-nine billion, eight hundred twenty-seven million, six hundred seventeen thousand, two hundred eighty-one".