6978818120 has 32 divisors (see below), whose sum is σ = 15738148800. Its totient is φ = 2785161408.

The previous prime is 6978818113. The next prime is 6978818137. The reversal of 6978818120 is 218188796.

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, 181154 + ... + 216273.

It is an arithmetic number, because the mean of its divisors is an integer number (491817150).

Almost surely, 2^6978818120 is an apocalyptic number.

It is an amenable number.

6978818120 is an abundant number, since it is smaller than the sum of its proper divisors (8759330680).

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

6978818120 is a wasteful number, since it uses less digits than its factorization.

6978818120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397877 (or 397873 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 50.

The square root of 6978818120 is about 83539.3208016441. The cubic root of 6978818120 is about 1910.9997342951. Note that the first 3 decimals are identical.

The spelling of 6978818120 in words is "six billion, nine hundred seventy-eight million, eight hundred eighteen thousand, one hundred twenty".