6778214945 has 16 divisors (see below), whose sum is σ = 8838151680. Its totient is φ = 4971456000.

The previous prime is 6778214801. The next prime is 6778214951. The reversal of 6778214945 is 5494128776.

It is not a de Polignac number, because 6778214945 - 2¹² = 6778210849 is a prime.

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, 1147856 + ... + 1153745.

It is an arithmetic number, because the mean of its divisors is an integer number (552384480).

Almost surely, 2^6778214945 is an apocalyptic number.

It is an amenable number.

6778214945 is a deficient number, since it is larger than the sum of its proper divisors (2059936735).

6778214945 is a wasteful number, since it uses less digits than its factorization.

6778214945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301656.

The product of its digits is 3386880, while the sum is 53.

The square root of 6778214945 is about 82329.9152495616. The cubic root of 6778214945 is about 1892.5111442402.

The spelling of 6778214945 in words is "six billion, seven hundred seventy-eight million, two hundred fourteen thousand, nine hundred forty-five".