2438779455 has 256 divisors, whose sum is σ = 5573836800. Its totient is φ = 986204160.

The previous prime is 2438779433. The next prime is 2438779463. The reversal of 2438779455 is 5549778342.

It is a happy number.

2438779455 is a `hidden beast` number, since 2 + 43 + 87 + 79 + 455 = 666.

It is a Cunningham number, because it is equal to 49384²-1.

It is not a de Polignac number, because 2438779455 - 2⁶ = 2438779391 is a prime.

It is a congruent number.

It is an unprimeable number.

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 255 ways as a sum of consecutive naturals, for example, 29382844 + ... + 29382926.

It is an arithmetic number, because the mean of its divisors is an integer number (21772800).

Almost surely, 2^2438779455 is an apocalyptic number.

2438779455 is an abundant number, since it is smaller than the sum of its proper divisors (3135057345).

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

2438779455 is a wasteful number, since it uses less digits than its factorization.

2438779455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 205 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The square root of 2438779455 is about 49383.9999898753. Note that the first 4 decimals coincide. The cubic root of 2438779455 is about 1346.0385845957.

The spelling of 2438779455 in words is "two billion, four hundred thirty-eight million, seven hundred seventy-nine thousand, four hundred fifty-five".