2868478620 has 144 divisors (see below), whose sum is σ = 9542292480. Its totient is φ = 641671296.

The previous prime is 2868478619. The next prime is 2868478651. The reversal of 2868478620 is 268748682.

2868478620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 127801 + ... + 148559.

It is an arithmetic number, because the mean of its divisors is an integer number (66265920).

Almost surely, 2^2868478620 is an apocalyptic number.

2868478620 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 2868478620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4771146240).

2868478620 is an abundant number, since it is smaller than the sum of its proper divisors (6673813860).

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

2868478620 is a wasteful number, since it uses less digits than its factorization.

2868478620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20832 (or 20823 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The square root of 2868478620 is about 53558.1797674267. The cubic root of 2868478620 is about 1420.8575491975.

The spelling of 2868478620 in words is "two billion, eight hundred sixty-eight million, four hundred seventy-eight thousand, six hundred twenty".