6854664047 has 24 divisors (see below), whose sum is σ = 8736176592. Its totient is φ = 5318275200.

The previous prime is 6854664043. The next prime is 6854664071. The reversal of 6854664047 is 7404664586.

It is not a de Polignac number, because 6854664047 - 2² = 6854664043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6854663986 and 6854664004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6854664041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98297 + ... + 152877.

It is an arithmetic number, because the mean of its divisors is an integer number (364007358).

Almost surely, 2^6854664047 is an apocalyptic number.

6854664047 is a deficient number, since it is larger than the sum of its proper divisors (1881512545).

6854664047 is a wasteful number, since it uses less digits than its factorization.

6854664047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54839 (or 54832 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The square root of 6854664047 is about 82792.8985300068. The cubic root of 6854664047 is about 1899.5995506015.

The spelling of 6854664047 in words is "six billion, eight hundred fifty-four million, six hundred sixty-four thousand, forty-seven".