11947303843779 has 16 divisors (see below), whose sum is σ = 15947602636320. Its totient is φ = 7955937914880.

The previous prime is 11947303843771. The next prime is 11947303843793. The reversal of 11947303843779 is 97734830374911.

It is not a de Polignac number, because 11947303843779 - 2³ = 11947303843771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11947303843771) 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, 71422519 + ... + 71589599.

It is an arithmetic number, because the mean of its divisors is an integer number (996725164770).

Almost surely, 2^{11947303843779} is an apocalyptic number.

11947303843779 is a deficient number, since it is larger than the sum of its proper divisors (4000298792541).

11947303843779 is a wasteful number, since it uses less digits than its factorization.

11947303843779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193670.

The product of its (nonzero) digits is 96018048, while the sum is 66.

The spelling of 11947303843779 in words is "eleven trillion, nine hundred forty-seven billion, three hundred three million, eight hundred forty-three thousand, seven hundred seventy-nine".