981485225279 has 8 divisors (see below), whose sum is σ = 1057473237072. Its totient is φ = 905567091840.

The previous prime is 981485225267. The next prime is 981485225293. The reversal of 981485225279 is 972522584189.

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

It is a cyclic number.

It is not a de Polignac number, because 981485225279 - 2¹² = 981485221183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981485225209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17440409 + ... + 17496594.

It is an arithmetic number, because the mean of its divisors is an integer number (132184154634).

Almost surely, 2^981485225279 is an apocalyptic number.

981485225279 is a deficient number, since it is larger than the sum of its proper divisors (75988011793).

981485225279 is a wasteful number, since it uses less digits than its factorization.

981485225279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34939177.

The product of its digits is 29030400, while the sum is 62.

The spelling of 981485225279 in words is "nine hundred eighty-one billion, four hundred eighty-five million, two hundred twenty-five thousand, two hundred seventy-nine".