481863649 has 2 divisors, whose sum is σ = 481863650. Its totient is φ = 481863648.

The previous prime is 481863631. The next prime is 481863653. The reversal of 481863649 is 946368184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426629025 + 55234624 = 20655^2 + 7432^2 .

It is a cyclic number.

It is not a de Polignac number, because 481863649 - 2¹⁷ = 481732577 is a prime.

It is not a weakly prime, because it can be changed into another prime (481863619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240931824 + 240931825.

It is an arithmetic number, because the mean of its divisors is an integer number (240931825).

Almost surely, 2^481863649 is an apocalyptic number.

It is an amenable number.

481863649 is a deficient number, since it is larger than the sum of its proper divisors (1).

481863649 is an equidigital number, since it uses as much as digits as its factorization.

481863649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 49.

The square root of 481863649 is about 21951.3928715241. The cubic root of 481863649 is about 783.9855444935.

The spelling of 481863649 in words is "four hundred eighty-one million, eight hundred sixty-three thousand, six hundred forty-nine".