6850787878 has 16 divisors (see below), whose sum is σ = 11394159120. Its totient is φ = 3062944800.

The previous prime is 6850787819. The next prime is 6850787903. The reversal of 6850787878 is 8787870586.

It is a happy number.

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, 2551113 + ... + 2553796.

It is an arithmetic number, because the mean of its divisors is an integer number (712134945).

Almost surely, 2^6850787878 is an apocalyptic number.

6850787878 is a deficient number, since it is larger than the sum of its proper divisors (4543371242).

6850787878 is a wasteful number, since it uses less digits than its factorization.

6850787878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104983.

The product of its (nonzero) digits is 42147840, while the sum is 64.

The square root of 6850787878 is about 82769.4863944437. The cubic root of 6850787878 is about 1899.2414218304.

The spelling of 6850787878 in words is "six billion, eight hundred fifty million, seven hundred eighty-seven thousand, eight hundred seventy-eight".