98772027789 has 4 divisors (see below), whose sum is σ = 131696037056. Its totient is φ = 65848018524.

The previous prime is 98772027787. The next prime is 98772027803.

98772027789 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 98772027789 - 2¹ = 98772027787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98772027787) 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, 16462004629 + ... + 16462004634.

It is an arithmetic number, because the mean of its divisors is an integer number (32924009264).

Almost surely, 2^98772027789 is an apocalyptic number.

It is an amenable number.

98772027789 is a deficient number, since it is larger than the sum of its proper divisors (32924009267).

98772027789 is a wasteful number, since it uses less digits than its factorization.

98772027789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32924009266.

The product of its (nonzero) digits is 49787136, while the sum is 66.

The spelling of 98772027789 in words is "ninety-eight billion, seven hundred seventy-two million, twenty-seven thousand, seven hundred eighty-nine".