6381787854 has 16 divisors (see below), whose sum is σ = 13745389392. Its totient is φ = 1963627008.

The previous prime is 6381787843. The next prime is 6381787889. The reversal of 6381787854 is 4587871836.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6381787794 and 6381787803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40908819 + ... + 40908974.

It is an arithmetic number, because the mean of its divisors is an integer number (859086837).

Almost surely, 2^6381787854 is an apocalyptic number.

6381787854 is an abundant number, since it is smaller than the sum of its proper divisors (7363601538).

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

6381787854 is a wasteful number, since it uses less digits than its factorization.

6381787854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81817811.

The product of its digits is 9031680, while the sum is 57.

The square root of 6381787854 is about 79886.0929949638. The cubic root of 6381787854 is about 1854.8727500178.

The spelling of 6381787854 in words is "six billion, three hundred eighty-one million, seven hundred eighty-seven thousand, eight hundred fifty-four".