9849025978 has 32 divisors (see below), whose sum is σ = 16327241280. Its totient is φ = 4418693760.

The previous prime is 9849025951. The next prime is 9849025999. The reversal of 9849025978 is 8795209489.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519726 + ... + 538342.

It is an arithmetic number, because the mean of its divisors is an integer number (510226290).

Almost surely, 2^9849025978 is an apocalyptic number.

9849025978 is a deficient number, since it is larger than the sum of its proper divisors (6478215302).

9849025978 is a wasteful number, since it uses less digits than its factorization.

9849025978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18942.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The square root of 9849025978 is about 99242.2590331357. The cubic root of 9849025978 is about 2143.5375427628.

The spelling of 9849025978 in words is "nine billion, eight hundred forty-nine million, twenty-five thousand, nine hundred seventy-eight".