98135134809 has 4 divisors (see below), whose sum is σ = 130846846416. Its totient is φ = 65423423204.

The previous prime is 98135134807. The next prime is 98135134859. The reversal of 98135134809 is 90843153189.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98135134809 - 2¹ = 98135134807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98135134807) 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, 16355855799 + ... + 16355855804.

It is an arithmetic number, because the mean of its divisors is an integer number (32711711604).

Almost surely, 2^98135134809 is an apocalyptic number.

It is an amenable number.

98135134809 is a deficient number, since it is larger than the sum of its proper divisors (32711711607).

98135134809 is a wasteful number, since it uses less digits than its factorization.

98135134809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32711711606.

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 98135134809 in words is "ninety-eight billion, one hundred thirty-five million, one hundred thirty-four thousand, eight hundred nine".