11868836842 has 8 divisors (see below), whose sum is σ = 17811306756. Its totient is φ = 5931734592.

The previous prime is 11868836831. The next prime is 11868836857. The reversal of 11868836842 is 24863886811.

It can be written as a sum of positive squares in 2 ways, for example, as 11782885401 + 85951441 = 108549^2 + 9271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1336383 + ... + 1345234.

Almost surely, 2^11868836842 is an apocalyptic number.

11868836842 is a deficient number, since it is larger than the sum of its proper divisors (5942469914).

11868836842 is a wasteful number, since it uses less digits than its factorization.

11868836842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683832.

The product of its digits is 3538944, while the sum is 55.

The spelling of 11868836842 in words is "eleven billion, eight hundred sixty-eight million, eight hundred thirty-six thousand, eight hundred forty-two".