98784948789 has 48 divisors (see below), whose sum is σ = 155859529280. Its totient is φ = 62351544960.

The previous prime is 98784948739. The next prime is 98784948799.

98784948789 is a `hidden beast` number, since 98 + 7 + 8 + 49 + 487 + 8 + 9 = 666.

98784948789 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 98784948789 - 2⁹ = 98784948277 is a prime.

It is a super-2 number, since 2×98784948789² (a number of 23 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98784948739) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8586489 + ... + 8597985.

Almost surely, 2^98784948789 is an apocalyptic number.

It is an amenable number.

98784948789 is a deficient number, since it is larger than the sum of its proper divisors (57074580491).

98784948789 is a wasteful number, since it uses less digits than its factorization.

With its successor (98784948790) it forms an eRAP, since the sums of their prime factors are consecutive (13392 and 13393).

98784948789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13392 (or 13380 counting only the distinct ones).

The product of its digits is 2341011456, while the sum is 81.

The spelling of 98784948789 in words is "ninety-eight billion, seven hundred eighty-four million, nine hundred forty-eight thousand, seven hundred eighty-nine".