11866834251 has 48 divisors (see below), whose sum is σ = 17613573120. Its totient is φ = 7697177280.

The previous prime is 11866834247. The next prime is 11866834261. The reversal of 11866834251 is 15243866811.

It is not a de Polignac number, because 11866834251 - 2² = 11866834247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11866834197 and 11866834206.

It is not an unprimeable number, because it can be changed into a prime (11866834261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13750246 + ... + 13751108.

It is an arithmetic number, because the mean of its divisors is an integer number (366949440).

Almost surely, 2^11866834251 is an apocalyptic number.

11866834251 is a deficient number, since it is larger than the sum of its proper divisors (5746738869).

11866834251 is a wasteful number, since it uses less digits than its factorization.

11866834251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1213 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 11866834251 in words is "eleven billion, eight hundred sixty-six million, eight hundred thirty-four thousand, two hundred fifty-one".