63481811 has 2 divisors, whose sum is σ = 63481812. Its totient is φ = 63481810.

The previous prime is 63481807. The next prime is 63481829. The reversal of 63481811 is 11818436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63481811 - 2² = 63481807 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63481801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31740905 + 31740906.

It is an arithmetic number, because the mean of its divisors is an integer number (31740906).

Almost surely, 2^63481811 is an apocalyptic number.

63481811 is a deficient number, since it is larger than the sum of its proper divisors (1).

63481811 is an equidigital number, since it uses as much as digits as its factorization.

63481811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 63481811 is about 7967.5473641517. The cubic root of 63481811 is about 398.9175127795.

The spelling of 63481811 in words is "sixty-three million, four hundred eighty-one thousand, eight hundred eleven".