898987954321879 has 2 divisors, whose sum is σ = 898987954321880. Its totient is φ = 898987954321878.

The previous prime is 898987954321817. The next prime is 898987954321883. The reversal of 898987954321879 is 978123459789898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 898987954321879 - 2²¹ = 898987952224727 is a prime.

It is a super-3 number, since 3×898987954321879³ (a number of 46 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898987954321279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449493977160939 + 449493977160940.

It is an arithmetic number, because the mean of its divisors is an integer number (449493977160940).

Almost surely, 2^{898987954321879} is an apocalyptic number.

898987954321879 is a deficient number, since it is larger than the sum of its proper divisors (1).

898987954321879 is an equidigital number, since it uses as much as digits as its factorization.

898987954321879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158018273280, while the sum is 97.

The spelling of 898987954321879 in words is "eight hundred ninety-eight trillion, nine hundred eighty-seven billion, nine hundred fifty-four million, three hundred twenty-one thousand, eight hundred seventy-nine".