11642073317 has 6 divisors (see below), whose sum is σ = 13542820038. Its totient is φ = 9978919944.

The previous prime is 11642073299. The next prime is 11642073329. The reversal of 11642073317 is 71337024611.

It can be written as a sum of positive squares in only one way, i.e., 11236212001 + 405861316 = 106001^2 + 20146^2 .

It is not a de Polignac number, because 11642073317 - 2¹² = 11642069221 is a prime.

It is a super-2 number, since 2×11642073317² (a number of 21 digits) contains 22 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 (11642073397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118796618 + ... + 118796715.

It is an arithmetic number, because the mean of its divisors is an integer number (2257136673).

Almost surely, 2^11642073317 is an apocalyptic number.

It is an amenable number.

11642073317 is a deficient number, since it is larger than the sum of its proper divisors (1900746721).

11642073317 is an equidigital number, since it uses as much as digits as its factorization.

11642073317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237593347 (or 237593340 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

Adding to 11642073317 its reverse (71337024611), we get a palindrome (82979097928).

The spelling of 11642073317 in words is "eleven billion, six hundred forty-two million, seventy-three thousand, three hundred seventeen".