2887613820 has 192 divisors, whose sum is σ = 11057034240. Its totient is φ = 609244416.

The previous prime is 2887613809. The next prime is 2887613851. The reversal of 2887613820 is 283167882.

2887613820 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 613 + 8 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19759 + ... + 78521.

It is an arithmetic number, because the mean of its divisors is an integer number (57588720).

Almost surely, 2^2887613820 is an apocalyptic number.

2887613820 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 2887613820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5528517120).

2887613820 is an abundant number, since it is smaller than the sum of its proper divisors (8169420420).

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

2887613820 is a wasteful number, since it uses less digits than its factorization.

2887613820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58801 (or 58793 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2887613820 is about 53736.5222172035. The cubic root of 2887613820 is about 1424.0099938016.

The spelling of 2887613820 in words is "two billion, eight hundred eighty-seven million, six hundred thirteen thousand, eight hundred twenty".