2145281998463 has 2 divisors, whose sum is σ = 2145281998464. Its totient is φ = 2145281998462.

The previous prime is 2145281998451. The next prime is 2145281998471. The reversal of 2145281998463 is 3648991825412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145281998463 - 2⁶ = 2145281998399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145281998396 and 2145281998405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145281928463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072640999231 + 1072640999232.

It is an arithmetic number, because the mean of its divisors is an integer number (1072640999232).

Almost surely, 2^{2145281998463} is an apocalyptic number.

2145281998463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145281998463 is an equidigital number, since it uses as much as digits as its factorization.

2145281998463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29859840, while the sum is 62.

The spelling of 2145281998463 in words is "two trillion, one hundred forty-five billion, two hundred eighty-one million, nine hundred ninety-eight thousand, four hundred sixty-three".