11982233857 has 8 divisors (see below), whose sum is σ = 13166942112. Its totient is φ = 10813428000.

The previous prime is 11982233839. The next prime is 11982233881. The reversal of 11982233857 is 75833228911.

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

It is a cyclic number.

It is not a de Polignac number, because 11982233857 - 2⁷ = 11982233729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11982233857.

It is not an unprimeable number, because it can be changed into a prime (11982233807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3974019 + ... + 3977032.

It is an arithmetic number, because the mean of its divisors is an integer number (1645867764).

Almost surely, 2^11982233857 is an apocalyptic number.

It is an amenable number.

11982233857 is a deficient number, since it is larger than the sum of its proper divisors (1184708255).

11982233857 is a wasteful number, since it uses less digits than its factorization.

11982233857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951199.

The product of its digits is 725760, while the sum is 49.

The spelling of 11982233857 in words is "eleven billion, nine hundred eighty-two million, two hundred thirty-three thousand, eight hundred fifty-seven".