11988973842 has 32 divisors (see below), whose sum is σ = 24061964544. Its totient is φ = 3982347600.

The previous prime is 11988973831. The next prime is 11988973847. The reversal of 11988973842 is 24837988911.

It is not an unprimeable number, because it can be changed into a prime (11988973847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2315917 + ... + 2321087.

It is an arithmetic number, because the mean of its divisors is an integer number (751936392).

Almost surely, 2^11988973842 is an apocalyptic number.

11988973842 is an abundant number, since it is smaller than the sum of its proper divisors (12072990702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11988973842 is a wasteful number, since it uses less digits than its factorization.

11988973842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454.

The product of its digits is 6967296, while the sum is 60.

The spelling of 11988973842 in words is "eleven billion, nine hundred eighty-eight million, nine hundred seventy-three thousand, eight hundred forty-two".