2987813580 has 96 divisors (see below), whose sum is σ = 8880399360. Its totient is φ = 747985920.

The previous prime is 2987813567. The next prime is 2987813581. The reversal of 2987813580 is 853187892.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2987813581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423885 + ... + 430875.

It is an arithmetic number, because the mean of its divisors is an integer number (92504160).

Almost surely, 2^2987813580 is an apocalyptic number.

2987813580 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 2987813580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4440199680).

2987813580 is an abundant number, since it is smaller than the sum of its proper divisors (5892585780).

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

2987813580 is a wasteful number, since it uses less digits than its factorization.

2987813580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439 (or 7437 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 2987813580 is about 54660.8962604895. The cubic root of 2987813580 is about 1440.2940468191.

The spelling of 2987813580 in words is "two billion, nine hundred eighty-seven million, eight hundred thirteen thousand, five hundred eighty".