1481641378643 has 2 divisors, whose sum is σ = 1481641378644. Its totient is φ = 1481641378642.

The previous prime is 1481641378631. The next prime is 1481641378649. The reversal of 1481641378643 is 3468731461841.

It is a strong prime.

It is an emirp because it is prime and its reverse (3468731461841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1481641378643 - 2⁸ = 1481641378387 is a prime.

It is a super-2 number, since 2×1481641378643² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1481641378649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740820689321 + 740820689322.

It is an arithmetic number, because the mean of its divisors is an integer number (740820689322).

Almost surely, 2^{1481641378643} is an apocalyptic number.

1481641378643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481641378643 is an equidigital number, since it uses as much as digits as its factorization.

1481641378643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9289728, while the sum is 56.

The spelling of 1481641378643 in words is "one trillion, four hundred eighty-one billion, six hundred forty-one million, three hundred seventy-eight thousand, six hundred forty-three".