6978240216 has 24 divisors (see below), whose sum is σ = 18899400780. Its totient is φ = 2326080048.

The previous prime is 6978240197. The next prime is 6978240229. The reversal of 6978240216 is 6120428796.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48459930 + ... + 48460073.

Almost surely, 2^6978240216 is an apocalyptic number.

It is an amenable number.

6978240216 is an abundant number, since it is smaller than the sum of its proper divisors (11921160564).

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

6978240216 is a wasteful number, since it uses less digits than its factorization.

6978240216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96920015 (or 96920008 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 6978240216 is about 83535.8618558521. The cubic root of 6978240216 is about 1910.9469839651.

The spelling of 6978240216 in words is "six billion, nine hundred seventy-eight million, two hundred forty thousand, two hundred sixteen".