6978078504 has 32 divisors (see below), whose sum is σ = 19383552000. Its totient is φ = 2326026096.

The previous prime is 6978078461. The next prime is 6978078533. The reversal of 6978078504 is 4058708796.

6978078504 is a `hidden beast` number, since 69 + 7 + 8 + 0 + 78 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 16152744 + ... + 16153175.

It is an arithmetic number, because the mean of its divisors is an integer number (605736000).

Almost surely, 2^6978078504 is an apocalyptic number.

It is an amenable number.

6978078504 is an abundant number, since it is smaller than the sum of its proper divisors (12405473496).

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

6978078504 is a wasteful number, since it uses less digits than its factorization.

6978078504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32305934 (or 32305924 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 6978078504 is about 83534.8939306204. The cubic root of 6978078504 is about 1910.9322225813.

The spelling of 6978078504 in words is "six billion, nine hundred seventy-eight million, seventy-eight thousand, five hundred four".