98631799249 has 9 divisors (see below), whose sum is σ = 100350711273. Its totient is φ = 96941858532.

The previous prime is 98631799243. The next prime is 98631799261. The reversal of 98631799249 is 94299713689.

The square root of 98631799249 is 314057.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 98631799249 - 2⁷ = 98631799121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98631799243) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18526702 + ... + 18532024.

Almost surely, 2^98631799249 is an apocalyptic number.

98631799249 is the 314057-th square number.

98631799249 is the 157029-th centered octagonal number.

It is an amenable number.

98631799249 is a deficient number, since it is larger than the sum of its proper divisors (1718912024).

98631799249 is an frugal number, since it uses more digits than its factorization.

98631799249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10764 (or 5382 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 67.

The spelling of 98631799249 in words is "ninety-eight billion, six hundred thirty-one million, seven hundred ninety-nine thousand, two hundred forty-nine".