2188135676 has 12 divisors (see below), whose sum is σ = 3829745472. Its totient is φ = 1093922688.

The previous prime is 2188135673. The next prime is 2188135679. The reversal of 2188135676 is 6765318812.

It is an interprime number because it is at equal distance from previous prime (2188135673) and next prime (2188135679).

It is a self number, because there is not a number n which added to its sum of digits gives 2188135676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188135673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156 + ... + 66188.

It is an arithmetic number, because the mean of its divisors is an integer number (319145456).

Almost surely, 2^2188135676 is an apocalyptic number.

It is an amenable number.

2188135676 is a deficient number, since it is larger than the sum of its proper divisors (1641609796).

2188135676 is a wasteful number, since it uses less digits than its factorization.

2188135676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72580 (or 72578 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 2188135676 is about 46777.5125033386. The cubic root of 2188135676 is about 1298.2492559087.

The spelling of 2188135676 in words is "two billion, one hundred eighty-eight million, one hundred thirty-five thousand, six hundred seventy-six".