6861574854 has 64 divisors (see below), whose sum is σ = 15435636480. Its totient is φ = 2259204480.

The previous prime is 6861574847. The next prime is 6861574873. The reversal of 6861574854 is 4584751686.

6861574854 is a `hidden beast` number, since 6 + 8 + 6 + 157 + 485 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6861574854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1603662 + ... + 1607934.

It is an arithmetic number, because the mean of its divisors is an integer number (241181820).

Almost surely, 2^6861574854 is an apocalyptic number.

6861574854 is an abundant number, since it is smaller than the sum of its proper divisors (8574061626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6861574854 is a wasteful number, since it uses less digits than its factorization.

6861574854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642 (or 4636 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 6861574854 is about 82834.6235218100. The cubic root of 6861574854 is about 1900.2377222409.

The spelling of 6861574854 in words is "six billion, eight hundred sixty-one million, five hundred seventy-four thousand, eight hundred fifty-four".