6780465878 has 16 divisors (see below), whose sum is σ = 10905295680. Its totient is φ = 3150416256.

The previous prime is 6780465871. The next prime is 6780465893. The reversal of 6780465878 is 8785640876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6780465871) 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, 1259501 + ... + 1264872.

It is an arithmetic number, because the mean of its divisors is an integer number (681580980).

Almost surely, 2^6780465878 is an apocalyptic number.

6780465878 is a deficient number, since it is larger than the sum of its proper divisors (4124829802).

6780465878 is a wasteful number, since it uses less digits than its factorization.

6780465878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524471.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The square root of 6780465878 is about 82343.5843159623. The cubic root of 6780465878 is about 1892.7206115980.

The spelling of 6780465878 in words is "six billion, seven hundred eighty million, four hundred sixty-five thousand, eight hundred seventy-eight".