7055217878 has 16 divisors (see below), whose sum is σ = 10617351360. Its totient is φ = 3516120576.

The previous prime is 7055217859. The next prime is 7055217881. The reversal of 7055217878 is 8787125507.

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, 813875 + ... + 822497.

It is an arithmetic number, because the mean of its divisors is an integer number (663584460).

Almost surely, 2^7055217878 is an apocalyptic number.

7055217878 is a deficient number, since it is larger than the sum of its proper divisors (3562133482).

7055217878 is a wasteful number, since it uses less digits than its factorization.

7055217878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911.

The product of its (nonzero) digits is 1097600, while the sum is 50.

The square root of 7055217878 is about 83995.3443828883. The cubic root of 7055217878 is about 1917.9479194773.

The spelling of 7055217878 in words is "seven billion, fifty-five million, two hundred seventeen thousand, eight hundred seventy-eight".