6778041872 has 40 divisors (see below), whose sum is σ = 15492675072. Its totient is φ = 2811168000.

The previous prime is 6778041871. The next prime is 6778041887. The reversal of 6778041872 is 2781408776.

It is a self number, because there is not a number n which added to its sum of digits gives 6778041872.

It is not an unprimeable number, because it can be changed into a prime (6778041871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972629 + ... + 979572.

Almost surely, 2^6778041872 is an apocalyptic number.

6778041872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6778041872 is an abundant number, since it is smaller than the sum of its proper divisors (8714633200).

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

6778041872 is a wasteful number, since it uses less digits than its factorization.

6778041872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952247 (or 1952241 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 50.

The square root of 6778041872 is about 82328.8641486083. The cubic root of 6778041872 is about 1892.4950364906.

The spelling of 6778041872 in words is "six billion, seven hundred seventy-eight million, forty-one thousand, eight hundred seventy-two".