9774257982 has 8 divisors (see below), whose sum is σ = 19548515976. Its totient is φ = 3258085992.

The previous prime is 9774257953. The next prime is 9774258029. The reversal of 9774257982 is 2897524779.

It is a sphenic number, since it is the product of 3 distinct primes.

9774257982 is an admirable number.

It is a super-2 number, since 2×9774257982² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814521493 + ... + 814521504.

It is an arithmetic number, because the mean of its divisors is an integer number (2443564497).

Almost surely, 2^9774257982 is an apocalyptic number.

9774257982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9774257982 is a wasteful number, since it uses less digits than its factorization.

9774257982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629043002.

The product of its digits is 17781120, while the sum is 60.

The square root of 9774257982 is about 98864.8470488879. The cubic root of 9774257982 is about 2138.0996013434.

The spelling of 9774257982 in words is "nine billion, seven hundred seventy-four million, two hundred fifty-seven thousand, nine hundred eighty-two".