2778050709896 has 128 divisors (see below), whose sum is σ = 6595633647360. Its totient is φ = 1074453050880.

The previous prime is 2778050709893. The next prime is 2778050710079. The reversal of 2778050709896 is 6989070508772.

It is not an unprimeable number, because it can be changed into a prime (2778050709893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10075406 + ... + 10347458.

It is an arithmetic number, because the mean of its divisors is an integer number (51528387870).

Almost surely, 2^{2778050709896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2778050709896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3297816823680).

2778050709896 is an abundant number, since it is smaller than the sum of its proper divisors (3817582937464).

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

2778050709896 is a wasteful number, since it uses less digits than its factorization.

2778050709896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272236 (or 272210 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 68.

The spelling of 2778050709896 in words is "two trillion, seven hundred seventy-eight billion, fifty million, seven hundred nine thousand, eight hundred ninety-six".