98000006999978 has 8 divisors (see below), whose sum is σ = 154736853157920. Its totient is φ = 46421055947340.

The previous prime is 98000006999977. The next prime is 98000007000001. The reversal of 98000006999978 is 87999960000089.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98000006999977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289473776278 + ... + 1289473776353.

It is an arithmetic number, because the mean of its divisors is an integer number (19342106644740).

Almost surely, 2^{98000006999978} is an apocalyptic number.

98000006999978 is a deficient number, since it is larger than the sum of its proper divisors (56736846157942).

98000006999978 is a wasteful number, since it uses less digits than its factorization.

98000006999978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578947552652.

The product of its (nonzero) digits is 158723712, while the sum is 74.

The spelling of 98000006999978 in words is "ninety-eight trillion, six million, nine hundred ninety-nine thousand, nine hundred seventy-eight".