98100309557 has 4 divisors (see below), whose sum is σ = 100493000076. Its totient is φ = 95707619040.

The previous prime is 98100309551. The next prime is 98100309611. The reversal of 98100309557 is 75590300189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50160769156 + 47939540401 = 223966^2 + 218951^2 .

It is a cyclic number.

It is not a de Polignac number, because 98100309557 - 2²⁴ = 98083532341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98100309551) 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, 1196345198 + ... + 1196345279.

It is an arithmetic number, because the mean of its divisors is an integer number (25123250019).

Almost surely, 2^98100309557 is an apocalyptic number.

It is an amenable number.

98100309557 is a deficient number, since it is larger than the sum of its proper divisors (2392690519).

98100309557 is a wasteful number, since it uses less digits than its factorization.

98100309557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392690518.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 98100309557 in words is "ninety-eight billion, one hundred million, three hundred nine thousand, five hundred fifty-seven".