981853089579 has 24 divisors (see below), whose sum is σ = 1484036241792. Its totient is φ = 624776146560.

The previous prime is 981853089557. The next prime is 981853089611. The reversal of 981853089579 is 975980358189.

981853089579 is a `hidden beast` number, since 9 + 8 + 1 + 8 + 530 + 89 + 5 + 7 + 9 = 666.

It is not a de Polignac number, because 981853089579 - 2¹¹ = 981853087531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981853089979) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 24083652 + ... + 24124385.

It is an arithmetic number, because the mean of its divisors is an integer number (61834843408).

Almost surely, 2^981853089579 is an apocalyptic number.

981853089579 is a deficient number, since it is larger than the sum of its proper divisors (502183152213).

981853089579 is a wasteful number, since it uses less digits than its factorization.

981853089579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48208147 (or 48208144 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 72.

The spelling of 981853089579 in words is "nine hundred eighty-one billion, eight hundred fifty-three million, eighty-nine thousand, five hundred seventy-nine".