98678271277890 has 80 divisors (see below), whose sum is σ = 265574165634360. Its totient is φ = 26290477566720.

The previous prime is 98678271277877. The next prime is 98678271277909. The reversal of 98678271277890 is 9877217287689.

98678271277890 is a `hidden beast` number, since 9 + 8 + 6 + 78 + 271 + 277 + 8 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 65074117323609 + 33604153954281 = 8066853^2 + 5796909^2 .

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54027331 + ... + 55823910.

Almost surely, 2^{98678271277890} is an apocalyptic number.

98678271277890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

98678271277890 is an abundant number, since it is smaller than the sum of its proper divisors (166895894356470).

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

98678271277890 is a wasteful number, since it uses less digits than its factorization.

98678271277890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109852369 (or 109852360 counting only the distinct ones).

The product of its (nonzero) digits is 2389782528, while the sum is 81.

The spelling of 98678271277890 in words is "ninety-eight trillion, six hundred seventy-eight billion, two hundred seventy-one million, two hundred seventy-seven thousand, eight hundred ninety".