63461819 has 2 divisors, whose sum is σ = 63461820. Its totient is φ = 63461818.

The previous prime is 63461813. The next prime is 63461861. The reversal of 63461819 is 91816436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63461819 - 2⁴ = 63461803 is a prime.

It is a super-2 number, since 2×63461819² = 8054804941577522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63461813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31730909 + 31730910.

It is an arithmetic number, because the mean of its divisors is an integer number (31730910).

Almost surely, 2^63461819 is an apocalyptic number.

63461819 is a deficient number, since it is larger than the sum of its proper divisors (1).

63461819 is an equidigital number, since it uses as much as digits as its factorization.

63461819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 63461819 is about 7966.2926760194. The cubic root of 63461819 is about 398.8756320364.

The spelling of 63461819 in words is "sixty-three million, four hundred sixty-one thousand, eight hundred nineteen".