481721067643 has 2 divisors, whose sum is σ = 481721067644. Its totient is φ = 481721067642.

The previous prime is 481721067631. The next prime is 481721067683. The reversal of 481721067643 is 346760127184.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481721067643 is a prime.

It is a super-2 number, since 2×481721067643² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (481721067683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240860533821 + 240860533822.

It is an arithmetic number, because the mean of its divisors is an integer number (240860533822).

Almost surely, 2^481721067643 is an apocalyptic number.

481721067643 is a deficient number, since it is larger than the sum of its proper divisors (1).

481721067643 is an equidigital number, since it uses as much as digits as its factorization.

481721067643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 481721067643 in words is "four hundred eighty-one billion, seven hundred twenty-one million, sixty-seven thousand, six hundred forty-three".