11506707747 has 8 divisors (see below), whose sum is σ = 17046974480. Its totient is φ = 7671138480.

The previous prime is 11506707683. The next prime is 11506707749. The reversal of 11506707747 is 74770760511.

11506707747 is a `hidden beast` number, since 1 + 1 + 506 + 70 + 7 + 74 + 7 = 666.

It is not a de Polignac number, because 11506707747 - 2⁶ = 11506707683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506707749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213087154 + ... + 213087207.

It is an arithmetic number, because the mean of its divisors is an integer number (2130871810).

Almost surely, 2^11506707747 is an apocalyptic number.

11506707747 is a deficient number, since it is larger than the sum of its proper divisors (5540266733).

11506707747 is an equidigital number, since it uses as much as digits as its factorization.

11506707747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426174370 (or 426174364 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 45.

The spelling of 11506707747 in words is "eleven billion, five hundred six million, seven hundred seven thousand, seven hundred forty-seven".