98777277789 has 16 divisors (see below), whose sum is σ = 132511002624. Its totient is φ = 65448700400.

The previous prime is 98777277757. The next prime is 98777277799.

98777277789 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 98777277789 - 2⁵ = 98777277757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98777277799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194824 + ... + 485294.

It is an arithmetic number, because the mean of its divisors is an integer number (8281937664).

Almost surely, 2^98777277789 is an apocalyptic number.

It is an amenable number.

98777277789 is a deficient number, since it is larger than the sum of its proper divisors (33733724835).

98777277789 is a wasteful number, since it uses less digits than its factorization.

98777277789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291168.

The product of its digits is 1219784832, while the sum is 78.

The spelling of 98777277789 in words is "ninety-eight billion, seven hundred seventy-seven million, two hundred seventy-seven thousand, seven hundred eighty-nine".