98136216491 has 8 divisors (see below), whose sum is σ = 98726691024. Its totient is φ = 97546009120.

The previous prime is 98136216463. The next prime is 98136216511. The reversal of 98136216491 is 19461263189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98136216491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98136216691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696176 + ... + 825186.

It is an arithmetic number, because the mean of its divisors is an integer number (12340836378).

Almost surely, 2^98136216491 is an apocalyptic number.

98136216491 is a deficient number, since it is larger than the sum of its proper divisors (590474533).

98136216491 is a wasteful number, since it uses less digits than its factorization.

98136216491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133581.

The product of its digits is 559872, while the sum is 50.

The spelling of 98136216491 in words is "ninety-eight billion, one hundred thirty-six million, two hundred sixteen thousand, four hundred ninety-one".