1998468463 has 2 divisors, whose sum is σ = 1998468464. Its totient is φ = 1998468462.

The previous prime is 1998468443. The next prime is 1998468467. The reversal of 1998468463 is 3648648991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1998468463 - 2²⁵ = 1964914031 is a prime.

It is a super-3 number, since 3×1998468463³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1998468398 and 1998468407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1998468467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999234231 + 999234232.

It is an arithmetic number, because the mean of its divisors is an integer number (999234232).

Almost surely, 2^1998468463 is an apocalyptic number.

1998468463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1998468463 is an equidigital number, since it uses as much as digits as its factorization.

1998468463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 58.

The square root of 1998468463 is about 44704.2331664463. The cubic root of 1998468463 is about 1259.5993651514.

The spelling of 1998468463 in words is "one billion, nine hundred ninety-eight million, four hundred sixty-eight thousand, four hundred sixty-three".