98135851873 has 4 divisors (see below), whose sum is σ = 103908549060. Its totient is φ = 92363154688.

The previous prime is 98135851811. The next prime is 98135851909. The reversal of 98135851873 is 37815853189.

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: 37815853189 = 191693 ⋅197273.

It can be written as a sum of positive squares in 2 ways, for example, as 89794317649 + 8341534224 = 299657^2 + 91332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98135851873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98135852873) 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, 2886348568 + ... + 2886348601.

It is an arithmetic number, because the mean of its divisors is an integer number (25977137265).

Almost surely, 2^98135851873 is an apocalyptic number.

It is an amenable number.

98135851873 is a deficient number, since it is larger than the sum of its proper divisors (5772697187).

98135851873 is a wasteful number, since it uses less digits than its factorization.

98135851873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772697186.

The product of its digits is 7257600, while the sum is 58.

The spelling of 98135851873 in words is "ninety-eight billion, one hundred thirty-five million, eight hundred fifty-one thousand, eight hundred seventy-three".