2163687436 has 6 divisors (see below), whose sum is σ = 3786453020. Its totient is φ = 1081843716.

The previous prime is 2163687403. The next prime is 2163687437. The reversal of 2163687436 is 6347863612.

It is not an unprimeable number, because it can be changed into a prime (2163687437) 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 as a sum of consecutive naturals, namely, 270460926 + ... + 270460933.

Almost surely, 2^2163687436 is an apocalyptic number.

It is an amenable number.

2163687436 is a deficient number, since it is larger than the sum of its proper divisors (1622765584).

2163687436 is a wasteful number, since it uses less digits than its factorization.

2163687436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540921863 (or 540921861 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The square root of 2163687436 is about 46515.4537331412. The cubic root of 2163687436 is about 1293.3959828711.

The spelling of 2163687436 in words is "two billion, one hundred sixty-three million, six hundred eighty-seven thousand, four hundred thirty-six".