6486722813 has 16 divisors (see below), whose sum is σ = 7074293760. Its totient is φ = 5932012800.

The previous prime is 6486722777. The next prime is 6486722833. The reversal of 6486722813 is 3182276846.

It is a cyclic number.

It is not a de Polignac number, because 6486722813 - 2¹⁰ = 6486721789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6486722833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34508 + ... + 119013.

It is an arithmetic number, because the mean of its divisors is an integer number (442143360).

Almost surely, 2^6486722813 is an apocalyptic number.

It is an amenable number.

6486722813 is a deficient number, since it is larger than the sum of its proper divisors (587570947).

6486722813 is a wasteful number, since it uses less digits than its factorization.

6486722813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153628.

The product of its digits is 774144, while the sum is 47.

The square root of 6486722813 is about 80540.1937730473. The cubic root of 6486722813 is about 1864.9840135481.

The spelling of 6486722813 in words is "six billion, four hundred eighty-six million, seven hundred twenty-two thousand, eight hundred thirteen".