6485816814 has 16 divisors (see below), whose sum is σ = 13288015440. Its totient is φ = 2109208640.

The previous prime is 6485816809. The next prime is 6485816819. The reversal of 6485816814 is 4186185846.

It is an interprime number because it is at equal distance from previous prime (6485816809) and next prime (6485816819).

It is a super-2 number, since 2×6485816814² = 84131639489530221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485816819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13182309 + ... + 13182800.

It is an arithmetic number, because the mean of its divisors is an integer number (830500965).

Almost surely, 2^6485816814 is an apocalyptic number.

6485816814 is an abundant number, since it is smaller than the sum of its proper divisors (6802198626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6485816814 is a wasteful number, since it uses less digits than its factorization.

6485816814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26365155.

The product of its digits is 1474560, while the sum is 51.

The square root of 6485816814 is about 80534.5690619873. The cubic root of 6485816814 is about 1864.8971822173.

The spelling of 6485816814 in words is "six billion, four hundred eighty-five million, eight hundred sixteen thousand, eight hundred fourteen".