2780667074892 has 192 divisors, whose sum is σ = 7758374400000. Its totient is φ = 758353252608.

The previous prime is 2780667074813. The next prime is 2780667074953. The reversal of 2780667074892 is 2984707660872.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130054659 + ... + 130076037.

It is an arithmetic number, because the mean of its divisors is an integer number (40408200000).

Almost surely, 2^{2780667074892} 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 2780667074892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3879187200000).

2780667074892 is an abundant number, since it is smaller than the sum of its proper divisors (4977707325108).

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

2780667074892 is a wasteful number, since it uses less digits than its factorization.

2780667074892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22028 (or 22026 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 66.

The spelling of 2780667074892 in words is "two trillion, seven hundred eighty billion, six hundred sixty-seven million, seventy-four thousand, eight hundred ninety-two".