11720243442767 has 32 divisors (see below), whose sum is σ = 12416248166400. Its totient is φ = 11049125787648.

The previous prime is 11720243442749. The next prime is 11720243442799. The reversal of 11720243442767 is 76724434202711.

It is a cyclic number.

It is not a de Polignac number, because 11720243442767 - 2⁸ = 11720243442511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11720243442727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 741357359 + ... + 741373167.

It is an arithmetic number, because the mean of its divisors is an integer number (388007755200).

Almost surely, 2^{11720243442767} is an apocalyptic number.

11720243442767 is a deficient number, since it is larger than the sum of its proper divisors (696004723633).

11720243442767 is a wasteful number, since it uses less digits than its factorization.

11720243442767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20135.

The product of its (nonzero) digits is 3161088, while the sum is 50.

The spelling of 11720243442767 in words is "eleven trillion, seven hundred twenty billion, two hundred forty-three million, four hundred forty-two thousand, seven hundred sixty-seven".