11731305747 has 24 divisors (see below), whose sum is σ = 18275702976. Its totient is φ = 6674053008.

The previous prime is 11731305731. The next prime is 11731305749. The reversal of 11731305747 is 74750313711.

It is not a de Polignac number, because 11731305747 - 2⁴ = 11731305731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11731305749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142413 + ... + 209150.

It is an arithmetic number, because the mean of its divisors is an integer number (761487624).

Almost surely, 2^11731305747 is an apocalyptic number.

11731305747 is a deficient number, since it is larger than the sum of its proper divisors (6544397229).

11731305747 is a wasteful number, since it uses less digits than its factorization.

11731305747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351807 (or 351800 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The spelling of 11731305747 in words is "eleven billion, seven hundred thirty-one million, three hundred five thousand, seven hundred forty-seven".