11601791471 has 4 divisors (see below), whose sum is σ = 11602099344. Its totient is φ = 11601483600.

The previous prime is 11601791441. The next prime is 11601791479. The reversal of 11601791471 is 17419710611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11601791471 is a prime.

It is a super-3 number, since 3×11601791471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601791479) 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 3 ways as a sum of consecutive naturals, for example, 87995 + ... + 175916.

It is an arithmetic number, because the mean of its divisors is an integer number (2900524836).

Almost surely, 2^11601791471 is an apocalyptic number.

11601791471 is a deficient number, since it is larger than the sum of its proper divisors (307873).

11601791471 is an equidigital number, since it uses as much as digits as its factorization.

11601791471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307872.

The product of its (nonzero) digits is 10584, while the sum is 38.

The spelling of 11601791471 in words is "eleven billion, six hundred one million, seven hundred ninety-one thousand, four hundred seventy-one".