6481293871 has 4 divisors (see below), whose sum is σ = 6979854952. Its totient is φ = 5982732792.

The previous prime is 6481293853. The next prime is 6481293953. The reversal of 6481293871 is 1783921846.

6481293871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6481293871 - 2⁹ = 6481293359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481293821) 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, 249280521 + ... + 249280546.

It is an arithmetic number, because the mean of its divisors is an integer number (1744963738).

Almost surely, 2^6481293871 is an apocalyptic number.

6481293871 is a deficient number, since it is larger than the sum of its proper divisors (498561081).

6481293871 is a wasteful number, since it uses less digits than its factorization.

6481293871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498561080.

The product of its digits is 580608, while the sum is 49.

The square root of 6481293871 is about 80506.4834097230. The cubic root of 6481293871 is about 1864.4635804389.

The spelling of 6481293871 in words is "six billion, four hundred eighty-one million, two hundred ninety-three thousand, eight hundred seventy-one".