2438878855771 has 4 divisors (see below), whose sum is σ = 2440759257112. Its totient is φ = 2436998454432.

The previous prime is 2438878855747. The next prime is 2438878855789. The reversal of 2438878855771 is 1775588788342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2438878855771 - 2⁷ = 2438878855643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2438878855694 and 2438878855703.

It is not an unprimeable number, because it can be changed into a prime (2438878855711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940198725 + ... + 940201318.

It is an arithmetic number, because the mean of its divisors is an integer number (610189814278).

Almost surely, 2^{2438878855771} is an apocalyptic number.

2438878855771 is a deficient number, since it is larger than the sum of its proper divisors (1880401341).

2438878855771 is a wasteful number, since it uses less digits than its factorization.

2438878855771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880401340.

The product of its digits is 842956800, while the sum is 73.

The spelling of 2438878855771 in words is "two trillion, four hundred thirty-eight billion, eight hundred seventy-eight million, eight hundred fifty-five thousand, seven hundred seventy-one".