11873837812 has 12 divisors (see below), whose sum is σ = 21012691140. Its totient is φ = 5870211776.

The previous prime is 11873837797. The next prime is 11873837939. The reversal of 11873837812 is 21873837811.

It can be written as a sum of positive squares in 2 ways, for example, as 7200201316 + 4673636496 = 84854^2 + 68364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16676383 + ... + 16677094.

It is an arithmetic number, because the mean of its divisors is an integer number (1751057595).

Almost surely, 2^11873837812 is an apocalyptic number.

It is an amenable number.

11873837812 is a deficient number, since it is larger than the sum of its proper divisors (9138853328).

11873837812 is a wasteful number, since it uses less digits than its factorization.

11873837812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33353570 (or 33353568 counting only the distinct ones).

The product of its digits is 451584, while the sum is 49.

Subtracting 11873837812 from its reverse (21873837811), we obtain a palindrome (9999999999).

The spelling of 11873837812 in words is "eleven billion, eight hundred seventy-three million, eight hundred thirty-seven thousand, eight hundred twelve".