2864908620 has 144 divisors (see below), whose sum is σ = 10174102848. Its totient is φ = 638853120.

The previous prime is 2864908619. The next prime is 2864908639. The reversal of 2864908620 is 268094682.

2864908620 is a `hidden beast` number, since 2 + 86 + 490 + 86 + 2 + 0 = 666.

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

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 47 ways as a sum of consecutive naturals, for example, 23932 + ... + 79388.

It is an arithmetic number, because the mean of its divisors is an integer number (70653492).

Almost surely, 2^2864908620 is an apocalyptic number.

2864908620 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 2864908620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5087051424).

2864908620 is an abundant number, since it is smaller than the sum of its proper divisors (7309194228).

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

2864908620 is a wasteful number, since it uses less digits than its factorization.

2864908620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55520 (or 55515 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 2864908620 is about 53524.8411487601. The cubic root of 2864908620 is about 1420.2678559709.

The spelling of 2864908620 in words is "two billion, eight hundred sixty-four million, nine hundred eight thousand, six hundred twenty".