6286781380 has 24 divisors (see below), whose sum is σ = 14402445120. Its totient is φ = 2286102240.

The previous prime is 6286781321. The next prime is 6286781381. The reversal of 6286781380 is 831876826.

It is not an unprimeable number, because it can be changed into a prime (6286781381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14287920 + ... + 14288359.

It is an arithmetic number, because the mean of its divisors is an integer number (600101880).

Almost surely, 2^6286781380 is an apocalyptic number.

It is an amenable number.

6286781380 is an abundant number, since it is smaller than the sum of its proper divisors (8115663740).

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

6286781380 is a wasteful number, since it uses less digits than its factorization.

6286781380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28576299 (or 28576297 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 6286781380 is about 79289.2261281443. The cubic root of 6286781380 is about 1845.6221176936.

The spelling of 6286781380 in words is "six billion, two hundred eighty-six million, seven hundred eighty-one thousand, three hundred eighty".