9498641985 has 160 divisors (see below), whose sum is σ = 19864196352. Its totient is φ = 4253160960.

The previous prime is 9498641983. The next prime is 9498641989. The reversal of 9498641985 is 5891468949.

9498641985 is a `hidden beast` number, since 9 + 498 + 64 + 1 + 9 + 85 = 666.

It is not a de Polignac number, because 9498641985 - 2¹ = 9498641983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (9498641983) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 52478595 + ... + 52478775.

Almost surely, 2^9498641985 is an apocalyptic number.

It is an amenable number.

9498641985 is an abundant number, since it is smaller than the sum of its proper divisors (10365554367).

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

9498641985 is a wasteful number, since it uses less digits than its factorization.

9498641985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 476 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The square root of 9498641985 is about 97460.9767291504. The cubic root of 9498641985 is about 2117.8108695646.

The spelling of 9498641985 in words is "nine billion, four hundred ninety-eight million, six hundred forty-one thousand, nine hundred eighty-five".