2866913280 has 672 divisors, whose sum is σ = 12512942208. Its totient is φ = 589824000.

The previous prime is 2866913261. The next prime is 2866913281. The reversal of 2866913280 is 823196682.

2866913280 is a `hidden beast` number, since 286 + 6 + 91 + 3 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2866913281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28385230 + ... + 28385330.

Almost surely, 2^2866913280 is an apocalyptic number.

2866913280 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 2866913280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6256471104).

2866913280 is an abundant number, since it is smaller than the sum of its proper divisors (9646028928).

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

2866913280 is a wasteful number, since it uses less digits than its factorization.

2866913280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2866913280 is about 53543.5643191598. The cubic root of 2866913280 is about 1420.5990463295.

The spelling of 2866913280 in words is "two billion, eight hundred sixty-six million, nine hundred thirteen thousand, two hundred eighty".