2187885696 has 32 divisors (see below), whose sum is σ = 5811572400. Its totient is φ = 729295104.

The previous prime is 2187885683. The next prime is 2187885697. The reversal of 2187885696 is 6965887812.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×2187885696² = 9573687637522808832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2187885697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848426 + ... + 2849193.

Almost surely, 2^2187885696 is an apocalyptic number.

It is an amenable number.

2187885696 is an abundant number, since it is smaller than the sum of its proper divisors (3623686704).

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

2187885696 is an equidigital number, since it uses as much as digits as its factorization.

2187885696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697636 (or 5697624 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 60.

The square root of 2187885696 is about 46774.8404166171. The cubic root of 2187885696 is about 1298.1998152346.

The spelling of 2187885696 in words is "two billion, one hundred eighty-seven million, eight hundred eighty-five thousand, six hundred ninety-six".