243996699892 has 24 divisors (see below), whose sum is σ = 469661576832. Its totient is φ = 110907588440.

The previous prime is 243996699829. The next prime is 243996699941. The reversal of 243996699892 is 298996699342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22909468 + ... + 22920115.

It is an arithmetic number, because the mean of its divisors is an integer number (19569232368).

Almost surely, 2^243996699892 is an apocalyptic number.

243996699892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243996699892 is a deficient number, since it is larger than the sum of its proper divisors (225664876940).

243996699892 is a wasteful number, since it uses less digits than its factorization.

243996699892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45829620 (or 45829596 counting only the distinct ones).

The product of its digits is 816293376, while the sum is 76.

The spelling of 243996699892 in words is "two hundred forty-three billion, nine hundred ninety-six million, six hundred ninety-nine thousand, eight hundred ninety-two".