2786977280 has 120 divisors (see below), whose sum is σ = 7100291088. Its totient is φ = 1048936448.

The previous prime is 2786977267. The next prime is 2786977313. The reversal of 2786977280 is 827796872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737957 + ... + 741723.

Almost surely, 2^2786977280 is an apocalyptic number.

2786977280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2786977280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3550145544).

2786977280 is an abundant number, since it is smaller than the sum of its proper divisors (4313313808).

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

2786977280 is an equidigital number, since it uses as much as digits as its factorization.

2786977280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824 (or 3791 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 56.

The square root of 2786977280 is about 52791.8296708875. The cubic root of 2786977280 is about 1407.2712309871.

The spelling of 2786977280 in words is "two billion, seven hundred eighty-six million, nine hundred seventy-seven thousand, two hundred eighty".