11959902788 has 6 divisors (see below), whose sum is σ = 20929829886. Its totient is φ = 5979951392.

The previous prime is 11959902767. The next prime is 11959902793. The reversal of 11959902788 is 88720995911.

It can be written as a sum of positive squares in only one way, i.e., 7037196544 + 4922706244 = 83888^2 + 70162^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1494987845 + ... + 1494987852.

It is an arithmetic number, because the mean of its divisors is an integer number (3488304981).

Almost surely, 2^11959902788 is an apocalyptic number.

It is an amenable number.

11959902788 is a deficient number, since it is larger than the sum of its proper divisors (8969927098).

11959902788 is a wasteful number, since it uses less digits than its factorization.

11959902788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989975701 (or 2989975699 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 59.

The spelling of 11959902788 in words is "eleven billion, nine hundred fifty-nine million, nine hundred two thousand, seven hundred eighty-eight".