98653473781 has 2 divisors, whose sum is σ = 98653473782. Its totient is φ = 98653473780.

The previous prime is 98653473739. The next prime is 98653473797. The reversal of 98653473781 is 18737435689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77567820100 + 21085653681 = 278510^2 + 145209^2 .

It is a cyclic number.

It is not a de Polignac number, because 98653473781 - 2²⁷ = 98519256053 is a prime.

It is a super-2 number, since 2×98653473781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98653473181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49326736890 + 49326736891.

It is an arithmetic number, because the mean of its divisors is an integer number (49326736891).

Almost surely, 2^98653473781 is an apocalyptic number.

It is an amenable number.

98653473781 is a deficient number, since it is larger than the sum of its proper divisors (1).

98653473781 is an equidigital number, since it uses as much as digits as its factorization.

98653473781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 61.

The spelling of 98653473781 in words is "ninety-eight billion, six hundred fifty-three million, four hundred seventy-three thousand, seven hundred eighty-one".