98999935949 has 4 divisors (see below), whose sum is σ = 99006434940. Its totient is φ = 98993436960.

The previous prime is 98999935939. The next prime is 98999935967. The reversal of 98999935949 is 94953999989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94953999989 = 1171 ⋅81087959.

It can be written as a sum of positive squares in 2 ways, for example, as 15185632900 + 83814303049 = 123230^2 + 289507^2 .

It is a cyclic number.

It is not a de Polignac number, because 98999935949 - 2⁴ = 98999935933 is a prime.

It is a super-2 number, since 2×98999935949² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98999935939) 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, 3226592 + ... + 3257129.

It is an arithmetic number, because the mean of its divisors is an integer number (24751608735).

Almost surely, 2^98999935949 is an apocalyptic number.

It is an amenable number.

98999935949 is a deficient number, since it is larger than the sum of its proper divisors (6498991).

98999935949 is a wasteful number, since it uses less digits than its factorization.

98999935949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498990.

The product of its digits is 2295825120, while the sum is 83.

The spelling of 98999935949 in words is "ninety-eight billion, nine hundred ninety-nine million, nine hundred thirty-five thousand, nine hundred forty-nine".