6450861863 has 2 divisors, whose sum is σ = 6450861864. Its totient is φ = 6450861862.

The previous prime is 6450861811. The next prime is 6450861869. The reversal of 6450861863 is 3681680546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6450861863 - 2⁶ = 6450861799 is a prime.

It is a super-2 number, since 2×6450861863² = 83227237551015661538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6450861869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225430931 + 3225430932.

It is an arithmetic number, because the mean of its divisors is an integer number (3225430932).

Almost surely, 2^6450861863 is an apocalyptic number.

6450861863 is a deficient number, since it is larger than the sum of its proper divisors (1).

6450861863 is an equidigital number, since it uses as much as digits as its factorization.

6450861863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 6450861863 is about 80317.2575664782. The cubic root of 6450861863 is about 1861.5408920567.

The spelling of 6450861863 in words is "six billion, four hundred fifty million, eight hundred sixty-one thousand, eight hundred sixty-three".