980986478985 has 224 divisors, whose sum is σ = 1948544438400. Its totient is φ = 471938503680.

The previous prime is 980986478971. The next prime is 980986479041. The reversal of 980986478985 is 589874689089.

It is not a de Polignac number, because 980986478985 - 2¹¹ = 980986476937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

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 223 ways as a sum of consecutive naturals, for example, 146609490 + ... + 146616180.

It is an arithmetic number, because the mean of its divisors is an integer number (8698859100).

Almost surely, 2^980986478985 is an apocalyptic number.

980986478985 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

980986478985 is a deficient number, since it is larger than the sum of its proper divisors (967557959415).

980986478985 is a wasteful number, since it uses less digits than its factorization.

980986478985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835 (or 6820 counting only the distinct ones).

The product of its (nonzero) digits is 2508226560, while the sum is 81.

The spelling of 980986478985 in words is "nine hundred eighty billion, nine hundred eighty-six million, four hundred seventy-eight thousand, nine hundred eighty-five".