9980474985 has 72 divisors (see below), whose sum is σ = 19547386560. Its totient is φ = 4699753344.

The previous prime is 9980474921. The next prime is 9980474993. The reversal of 9980474985 is 5894740899.

9980474985 is a `hidden beast` number, since 9 + 9 + 80 + 474 + 9 + 85 = 666.

It is not a de Polignac number, because 9980474985 - 2⁶ = 9980474921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 146386 + ... + 203444.

It is an arithmetic number, because the mean of its divisors is an integer number (271491480).

Almost surely, 2^9980474985 is an apocalyptic number.

It is an amenable number.

9980474985 is a deficient number, since it is larger than the sum of its proper divisors (9566911575).

9980474985 is a wasteful number, since it uses less digits than its factorization.

9980474985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57119 (or 57103 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The square root of 9980474985 is about 99902.3272251453. The cubic root of 9980474985 is about 2153.0315974672.

The spelling of 9980474985 in words is "nine billion, nine hundred eighty million, four hundred seventy-four thousand, nine hundred eighty-five".