2671448778 has 12 divisors (see below), whose sum is σ = 5788139058. Its totient is φ = 890482920.

The previous prime is 2671448737. The next prime is 2671448779. The reversal of 2671448778 is 8778441762.

2671448778 is a `hidden beast` number, since 26 + 71 + 4 + 487 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2637541449 + 33907329 = 51357^2 + 5823^2 .

It is not an unprimeable number, because it can be changed into a prime (2671448779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74206893 + ... + 74206928.

Almost surely, 2^2671448778 is an apocalyptic number.

2671448778 is an abundant number, since it is smaller than the sum of its proper divisors (3116690280).

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

2671448778 is a wasteful number, since it uses less digits than its factorization.

2671448778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148413829 (or 148413826 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 54.

The square root of 2671448778 is about 51686.0598033938. The cubic root of 2671448778 is about 1387.5509863903.

The spelling of 2671448778 in words is "two billion, six hundred seventy-one million, four hundred forty-eight thousand, seven hundred seventy-eight".