6514481893 has 4 divisors (see below), whose sum is σ = 6519048480. Its totient is φ = 6509915308.

The previous prime is 6514481867. The next prime is 6514481929. The reversal of 6514481893 is 3981844156.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6514481893 - 2²⁵ = 6480927461 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6514481093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281153 + ... + 2284006.

It is an arithmetic number, because the mean of its divisors is an integer number (1629762120).

Almost surely, 2^6514481893 is an apocalyptic number.

It is an amenable number.

6514481893 is a deficient number, since it is larger than the sum of its proper divisors (4566587).

6514481893 is a wasteful number, since it uses less digits than its factorization.

6514481893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566586.

The product of its digits is 829440, while the sum is 49.

The square root of 6514481893 is about 80712.3404009573. The cubic root of 6514481893 is about 1867.6405459248.

The spelling of 6514481893 in words is "six billion, five hundred fourteen million, four hundred eighty-one thousand, eight hundred ninety-three".