98895397978 has 16 divisors (see below), whose sum is σ = 164071784520. Its totient is φ = 44410406976.

The previous prime is 98895397943. The next prime is 98895397987. The reversal of 98895397978 is 87979359889.

It can be written as a sum of positive squares in 4 ways, for example, as 97295957929 + 1599440049 = 311923^2 + 39993^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51399973 + ... + 51401896.

Almost surely, 2^98895397978 is an apocalyptic number.

98895397978 is a deficient number, since it is larger than the sum of its proper divisors (65176386542).

98895397978 is a wasteful number, since it uses less digits than its factorization.

98895397978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102801921.

The product of its digits is 2469035520, while the sum is 82.

The spelling of 98895397978 in words is "ninety-eight billion, eight hundred ninety-five million, three hundred ninety-seven thousand, nine hundred seventy-eight".