6854388651 has 48 divisors (see below), whose sum is σ = 11091880800. Its totient is φ = 4042752000.

The previous prime is 6854388613. The next prime is 6854388721. The reversal of 6854388651 is 1568834586.

6854388651 is a `hidden beast` number, since 6 + 85 + 438 + 86 + 51 = 666.

It is not a de Polignac number, because 6854388651 - 2⁹ = 6854388139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6854380651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1820611 + ... + 1824371.

It is an arithmetic number, because the mean of its divisors is an integer number (231080850).

Almost surely, 2^6854388651 is an apocalyptic number.

6854388651 is a deficient number, since it is larger than the sum of its proper divisors (4237492149).

6854388651 is a wasteful number, since it uses less digits than its factorization.

6854388651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268 (or 4265 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The square root of 6854388651 is about 82791.2353513341. The cubic root of 6854388651 is about 1899.5741105449.

The spelling of 6854388651 in words is "six billion, eight hundred fifty-four million, three hundred eighty-eight thousand, six hundred fifty-one".