6777955875918 has 16 divisors (see below), whose sum is σ = 13639076856576. Its totient is φ = 2245457774520.

The previous prime is 6777955875857. The next prime is 6777955875941. The reversal of 6777955875918 is 8195785597776.

It is a super-2 number, since 2×6777955875918² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 3465211638 + ... + 3465213593.

It is an arithmetic number, because the mean of its divisors is an integer number (852442303536).

Almost surely, 2^{6777955875918} is an apocalyptic number.

6777955875918 is an abundant number, since it is smaller than the sum of its proper divisors (6861120980658).

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

6777955875918 is a wasteful number, since it uses less digits than its factorization.

6777955875918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930425399.

The product of its digits is 9335088000, while the sum is 84.

The spelling of 6777955875918 in words is "six trillion, seven hundred seventy-seven billion, nine hundred fifty-five million, eight hundred seventy-five thousand, nine hundred eighteen".