6918240378 has 16 divisors (see below), whose sum is σ = 15813120960. Its totient is φ = 1976640096.

The previous prime is 6918240337. The next prime is 6918240379. The reversal of 6918240378 is 8730428196.

It is not an unprimeable number, because it can be changed into a prime (6918240379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82359963 + ... + 82360046.

It is an arithmetic number, because the mean of its divisors is an integer number (988320060).

Almost surely, 2^6918240378 is an apocalyptic number.

6918240378 is an abundant number, since it is smaller than the sum of its proper divisors (8894880582).

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

6918240378 is a wasteful number, since it uses less digits than its factorization.

6918240378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164720021.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 6918240378 is about 83175.9603371070. The cubic root of 6918240378 is about 1905.4543528103.

The spelling of 6918240378 in words is "six billion, nine hundred eighteen million, two hundred forty thousand, three hundred seventy-eight".