2141864836 has 6 divisors (see below), whose sum is σ = 3748263470. Its totient is φ = 1070932416.

The previous prime is 2141864821. The next prime is 2141864839. The reversal of 2141864836 is 6384681412.

It can be written as a sum of positive squares in only one way, i.e., 2079360000 + 62504836 = 45600^2 + 7906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2141864792 and 2141864801.

It is not an unprimeable number, because it can be changed into a prime (2141864839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267733101 + ... + 267733108.

Almost surely, 2^2141864836 is an apocalyptic number.

It is an amenable number.

2141864836 is a deficient number, since it is larger than the sum of its proper divisors (1606398634).

2141864836 is a wasteful number, since it uses less digits than its factorization.

2141864836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535466213 (or 535466211 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 2141864836 is about 46280.2856084532. The cubic root of 2141864836 is about 1289.0329543032.

The spelling of 2141864836 in words is "two billion, one hundred forty-one million, eight hundred sixty-four thousand, eight hundred thirty-six".