2780878622826 has 32 divisors (see below), whose sum is σ = 5713333312320. Its totient is φ = 901707901056.

The previous prime is 2780878622779. The next prime is 2780878622827. The reversal of 2780878622826 is 6282268780872.

It is not an unprimeable number, because it can be changed into a prime (2780878622827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368011 + ... + 2386878.

It is an arithmetic number, because the mean of its divisors is an integer number (178541666010).

Almost surely, 2^{2780878622826} is an apocalyptic number.

2780878622826 is an abundant number, since it is smaller than the sum of its proper divisors (2932454689494).

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

2780878622826 is a wasteful number, since it uses less digits than its factorization.

2780878622826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759478.

The product of its (nonzero) digits is 115605504, while the sum is 66.

The spelling of 2780878622826 in words is "two trillion, seven hundred eighty billion, eight hundred seventy-eight million, six hundred twenty-two thousand, eight hundred twenty-six".