2188867316 has 6 divisors (see below), whose sum is σ = 3830517810. Its totient is φ = 1094433656.

The previous prime is 2188867309. The next prime is 2188867319. The reversal of 2188867316 is 6137688812.

It can be written as a sum of positive squares in only one way, i.e., 2130191716 + 58675600 = 46154^2 + 7660^2 .

It is a super-2 number, since 2×2188867316² = 9582280254106087712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188867319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273608411 + ... + 273608418.

It is an arithmetic number, because the mean of its divisors is an integer number (638419635).

Almost surely, 2^2188867316 is an apocalyptic number.

It is an amenable number.

2188867316 is a deficient number, since it is larger than the sum of its proper divisors (1641650494).

2188867316 is a wasteful number, since it uses less digits than its factorization.

2188867316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547216833 (or 547216831 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 2188867316 is about 46785.3322741220. The cubic root of 2188867316 is about 1298.3939369492.

The spelling of 2188867316 in words is "two billion, one hundred eighty-eight million, eight hundred sixty-seven thousand, three hundred sixteen".