98117854465 has 4 divisors (see below), whose sum is σ = 117741425364. Its totient is φ = 78494283568.

The previous prime is 98117854423. The next prime is 98117854489. The reversal of 98117854465 is 56445871189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56445871189 = 27883 ⋅2024383.

It can be written as a sum of positive squares in 2 ways, for example, as 26621511921 + 71496342544 = 163161^2 + 267388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98117854465 is a prime.

It is a super-2 number, since 2×98117854465² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9811785442 + ... + 9811785451.

It is an arithmetic number, because the mean of its divisors is an integer number (29435356341).

Almost surely, 2^98117854465 is an apocalyptic number.

It is an amenable number.

98117854465 is a deficient number, since it is larger than the sum of its proper divisors (19623570899).

98117854465 is a wasteful number, since it uses less digits than its factorization.

98117854465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19623570898.

The product of its digits is 9676800, while the sum is 58.

The spelling of 98117854465 in words is "ninety-eight billion, one hundred seventeen million, eight hundred fifty-four thousand, four hundred sixty-five".