98947874989 has 4 divisors (see below), whose sum is σ = 99300002940. Its totient is φ = 98595747040.

The previous prime is 98947874947. The next prime is 98947875007.

98947874989 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30996419364 + 67951455625 = 176058^2 + 260675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98947874989 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98947874939) 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, 176063554 + ... + 176064115.

It is an arithmetic number, because the mean of its divisors is an integer number (24825000735).

Almost surely, 2^98947874989 is an apocalyptic number.

It is an amenable number.

98947874989 is a deficient number, since it is larger than the sum of its proper divisors (352127951).

98947874989 is a wasteful number, since it uses less digits than its factorization.

98947874989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352127950.

The product of its digits is 2633637888, while the sum is 82.

The spelling of 98947874989 in words is "ninety-eight billion, nine hundred forty-seven million, eight hundred seventy-four thousand, nine hundred eighty-nine".