898181378671 has 2 divisors, whose sum is σ = 898181378672. Its totient is φ = 898181378670.

The previous prime is 898181378639. The next prime is 898181378683. The reversal of 898181378671 is 176873181898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 898181378671 - 2⁵ = 898181378639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 898181378597 and 898181378606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898181379671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449090689335 + 449090689336.

It is an arithmetic number, because the mean of its divisors is an integer number (449090689336).

Almost surely, 2^898181378671 is an apocalyptic number.

898181378671 is a deficient number, since it is larger than the sum of its proper divisors (1).

898181378671 is an equidigital number, since it uses as much as digits as its factorization.

898181378671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32514048, while the sum is 67.

The spelling of 898181378671 in words is "eight hundred ninety-eight billion, one hundred eighty-one million, three hundred seventy-eight thousand, six hundred seventy-one".