6778504628 has 24 divisors (see below), whose sum is σ = 13559922432. Its totient is φ = 2904449184.

The previous prime is 6778504583. The next prime is 6778504633. The reversal of 6778504628 is 8264058776.

It is a self number, because there is not a number n which added to its sum of digits gives 6778504628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121250 + ... + 168102.

It is an arithmetic number, because the mean of its divisors is an integer number (564996768).

Almost surely, 2^6778504628 is an apocalyptic number.

It is an amenable number.

6778504628 is an abundant number, since it is smaller than the sum of its proper divisors (6781417804).

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

6778504628 is a wasteful number, since it uses less digits than its factorization.

6778504628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52031 (or 52029 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 53.

The square root of 6778504628 is about 82331.6745123042. The cubic root of 6778504628 is about 1892.5381041651.

The spelling of 6778504628 in words is "six billion, seven hundred seventy-eight million, five hundred four thousand, six hundred twenty-eight".