98572817947 has 4 divisors (see below), whose sum is σ = 98574658480. Its totient is φ = 98570977416.

The previous prime is 98572817927. The next prime is 98572817971. The reversal of 98572817947 is 74971827589.

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

It is a cyclic number.

It is not a de Polignac number, because 98572817947 - 2²⁷ = 98438600219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98572817927) 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, 837447 + ... + 947872.

It is an arithmetic number, because the mean of its divisors is an integer number (24643664620).

Almost surely, 2^98572817947 is an apocalyptic number.

98572817947 is a deficient number, since it is larger than the sum of its proper divisors (1840533).

98572817947 is a wasteful number, since it uses less digits than its factorization.

98572817947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840532.

The product of its digits is 71124480, while the sum is 67.

The spelling of 98572817947 in words is "ninety-eight billion, five hundred seventy-two million, eight hundred seventeen thousand, nine hundred forty-seven".