9824061978 has 12 divisors (see below), whose sum is σ = 21285467658. Its totient is φ = 3274687320.

The previous prime is 9824061977. The next prime is 9824061979. The reversal of 9824061978 is 8791604289.

It is an interprime number because it is at equal distance from previous prime (9824061977) and next prime (9824061979).

It can be written as a sum of positive squares in only one way, i.e., 8503975089 + 1320086889 = 92217^2 + 36333^2 .

It is not an unprimeable number, because it can be changed into a prime (9824061971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 272890593 + ... + 272890628.

Almost surely, 2^9824061978 is an apocalyptic number.

9824061978 is an abundant number, since it is smaller than the sum of its proper divisors (11461405680).

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

9824061978 is a wasteful number, since it uses less digits than its factorization.

9824061978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545781229 (or 545781226 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 9824061978 is about 99116.4061999829. The cubic root of 9824061978 is about 2141.7249592583.

The spelling of 9824061978 in words is "nine billion, eight hundred twenty-four million, sixty-one thousand, nine hundred seventy-eight".