2788154880 has 480 divisors, whose sum is σ = 10747883520. Its totient is φ = 614154240.

The previous prime is 2788154861. The next prime is 2788154893. The reversal of 2788154880 is 884518872.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11665801 + ... + 11666039.

It is an arithmetic number, because the mean of its divisors is an integer number (22391424).

Almost surely, 2^2788154880 is an apocalyptic number.

2788154880 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 2788154880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5373941760).

2788154880 is an abundant number, since it is smaller than the sum of its proper divisors (7959728640).

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

2788154880 is a wasteful number, since it uses less digits than its factorization.

2788154880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 51.

The square root of 2788154880 is about 52802.9817339892. The cubic root of 2788154880 is about 1407.4694109601.

The spelling of 2788154880 in words is "two billion, seven hundred eighty-eight million, one hundred fifty-four thousand, eight hundred eighty".