6778066495 has 16 divisors (see below), whose sum is σ = 8361575712. Its totient is φ = 5271459840.

The previous prime is 6778066459. The next prime is 6778066501. The reversal of 6778066495 is 5946608776.

It is a happy number.

It is not a de Polignac number, because 6778066495 - 2⁷ = 6778066367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402 + ... + 116431.

It is an arithmetic number, because the mean of its divisors is an integer number (522598482).

Almost surely, 2^6778066495 is an apocalyptic number.

6778066495 is a deficient number, since it is larger than the sum of its proper divisors (1583509217).

6778066495 is a wasteful number, since it uses less digits than its factorization.

6778066495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117162.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The square root of 6778066495 is about 82329.0136889784. The cubic root of 6778066495 is about 1892.4973281479.

The spelling of 6778066495 in words is "six billion, seven hundred seventy-eight million, sixty-six thousand, four hundred ninety-five".