6956106777978 has 16 divisors (see below), whose sum is σ = 13912246404480. Its totient is φ = 2318696784576.

The previous prime is 6956106777959. The next prime is 6956106778009. The reversal of 6956106777978 is 8797776016596.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2035551 + ... + 4249197.

It is an arithmetic number, because the mean of its divisors is an integer number (869515400280).

Almost surely, 2^{6956106777978} is an apocalyptic number.

6956106777978 is an abundant number, since it is smaller than the sum of its proper divisors (6956139626502).

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

6956106777978 is a wasteful number, since it uses less digits than its factorization.

6956106777978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737381.

The product of its (nonzero) digits is 1680315840, while the sum is 78.

The spelling of 6956106777978 in words is "six trillion, nine hundred fifty-six billion, one hundred six million, seven hundred seventy-seven thousand, nine hundred seventy-eight".