98648218513 has 4 divisors (see below), whose sum is σ = 106236543028. Its totient is φ = 91059894000.

The previous prime is 98648218489. The next prime is 98648218547. The reversal of 98648218513 is 31581284689.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31581284689 = 31 ⋅1018751119.

It can be written as a sum of positive squares in 2 ways, for example, as 61636999824 + 37011218689 = 248268^2 + 192383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98648218513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98648518513) 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, 3794162238 + ... + 3794162263.

It is an arithmetic number, because the mean of its divisors is an integer number (26559135757).

Almost surely, 2^98648218513 is an apocalyptic number.

It is an amenable number.

98648218513 is a deficient number, since it is larger than the sum of its proper divisors (7588324515).

98648218513 is a wasteful number, since it uses less digits than its factorization.

98648218513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588324514.

The product of its digits is 3317760, while the sum is 55.

The spelling of 98648218513 in words is "ninety-eight billion, six hundred forty-eight million, two hundred eighteen thousand, five hundred thirteen".