11681715243 has 32 divisors (see below), whose sum is σ = 17733219840. Its totient is φ = 6775139840.

The previous prime is 11681715211. The next prime is 11681715293. The reversal of 11681715243 is 34251718611.

It is a cyclic number.

It is not a de Polignac number, because 11681715243 - 2⁵ = 11681715211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11681715293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54130 + ... + 162152.

It is an arithmetic number, because the mean of its divisors is an integer number (554163120).

Almost surely, 2^11681715243 is an apocalyptic number.

11681715243 is a deficient number, since it is larger than the sum of its proper divisors (6051504597).

11681715243 is a wasteful number, since it uses less digits than its factorization.

11681715243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108179.

The product of its digits is 40320, while the sum is 39.

The spelling of 11681715243 in words is "eleven billion, six hundred eighty-one million, seven hundred fifteen thousand, two hundred forty-three".