2867738856 has 64 divisors (see below), whose sum is σ = 7560000000. Its totient is φ = 904003776.

The previous prime is 2867738813. The next prime is 2867738873. The reversal of 2867738856 is 6588377682.

It is a super-2 number, since 2×2867738856² = 16447852292424377472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2867738856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267895 + ... + 278393.

It is an arithmetic number, because the mean of its divisors is an integer number (118125000).

Almost surely, 2^2867738856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2867738856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3780000000).

2867738856 is an abundant number, since it is smaller than the sum of its proper divisors (4692261144).

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

2867738856 is a wasteful number, since it uses less digits than its factorization.

2867738856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11126 (or 11122 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The square root of 2867738856 is about 53551.2731501315. The cubic root of 2867738856 is about 1420.7353950554.

The spelling of 2867738856 in words is "two billion, eight hundred sixty-seven million, seven hundred thirty-eight thousand, eight hundred fifty-six".