6978140954 has 16 divisors (see below), whose sum is σ = 10545474240. Its totient is φ = 3463022400.

The previous prime is 6978140947. The next prime is 6978140957. The reversal of 6978140954 is 4590418796.

It is a junction number, because it is equal to n+sod(n) for n = 6978140896 and 6978140905.

It is not an unprimeable number, because it can be changed into a prime (6978140957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371042 + ... + 389394.

It is an arithmetic number, because the mean of its divisors is an integer number (659092140).

Almost surely, 2^6978140954 is an apocalyptic number.

6978140954 is a deficient number, since it is larger than the sum of its proper divisors (3567333286).

6978140954 is a wasteful number, since it uses less digits than its factorization.

6978140954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19765.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 6978140954 is about 83535.2677256738. The cubic root of 6978140954 is about 1910.9379231650.

The spelling of 6978140954 in words is "six billion, nine hundred seventy-eight million, one hundred forty thousand, nine hundred fifty-four".