98122586647 has 4 divisors (see below), whose sum is σ = 98123369760. Its totient is φ = 98121803536.

The previous prime is 98122586641. The next prime is 98122586669. The reversal of 98122586647 is 74668522189.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74668522189 = 131 ⋅569988719.

It is a 4-Lehmer number, since φ(98122586647) divides (98122586647-1)⁴.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98122586647 is a prime.

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 deceptive number, since it divides R_98122586646.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 98122586591 and 98122586600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98122586641) 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, 156622 + ... + 469867.

It is an arithmetic number, because the mean of its divisors is an integer number (24530842440).

It is a Poulet number, since it divides 2^98122586646-1.

Almost surely, 2^98122586647 is an apocalyptic number.

98122586647 is the 156623-rd decagonal number.

98122586647 is a deficient number, since it is larger than the sum of its proper divisors (783113).

98122586647 is a wasteful number, since it uses less digits than its factorization.

98122586647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783112.

The product of its digits is 11612160, while the sum is 58.

The spelling of 98122586647 in words is "ninety-eight billion, one hundred twenty-two million, five hundred eighty-six thousand, six hundred forty-seven".