98987364775 has 24 divisors (see below), whose sum is σ = 132540752960. Its totient is φ = 72902298240.

The previous prime is 98987364701. The next prime is 98987364781. The reversal of 98987364775 is 57746378989.

It is a de Polignac number, because none of the positive numbers 2^k-98987364775 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98987364698 and 98987364707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287055 + ... + 529504.

Almost surely, 2^98987364775 is an apocalyptic number.

98987364775 is a deficient number, since it is larger than the sum of its proper divisors (33553388185).

98987364775 is a wasteful number, since it uses less digits than its factorization.

98987364775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816955 (or 816950 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 73.

The spelling of 98987364775 in words is "ninety-eight billion, nine hundred eighty-seven million, three hundred sixty-four thousand, seven hundred seventy-five".