6814251993 has 4 divisors (see below), whose sum is σ = 9085669328. Its totient is φ = 4542834660.

The previous prime is 6814251991. The next prime is 6814252009. The reversal of 6814251993 is 3991524186.

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 not a de Polignac number, because 6814251993 - 2¹ = 6814251991 is a prime.

It is a super-3 number, since 3×6814251993³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6814251991) 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, 1135708663 + ... + 1135708668.

It is an arithmetic number, because the mean of its divisors is an integer number (2271417332).

Almost surely, 2^6814251993 is an apocalyptic number.

It is an amenable number.

6814251993 is a deficient number, since it is larger than the sum of its proper divisors (2271417335).

6814251993 is a wasteful number, since it uses less digits than its factorization.

6814251993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271417334.

The product of its digits is 466560, while the sum is 48.

The square root of 6814251993 is about 82548.4826813915. The cubic root of 6814251993 is about 1895.8591252997.

The spelling of 6814251993 in words is "six billion, eight hundred fourteen million, two hundred fifty-one thousand, nine hundred ninety-three".