11642504693 has 4 divisors (see below), whose sum is σ = 11957167020. Its totient is φ = 11327842368.

The previous prime is 11642504641. The next prime is 11642504701. The reversal of 11642504693 is 39640524611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39640524611 = 5779 ⋅6859409.

It can be written as a sum of positive squares in 2 ways, for example, as 9734387569 + 1908117124 = 98663^2 + 43682^2 .

It is a cyclic number.

It is not a de Polignac number, because 11642504693 - 2⁸ = 11642504437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11642504693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642504593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157331108 + ... + 157331181.

It is an arithmetic number, because the mean of its divisors is an integer number (2989291755).

Almost surely, 2^11642504693 is an apocalyptic number.

It is an amenable number.

11642504693 is a deficient number, since it is larger than the sum of its proper divisors (314662327).

11642504693 is an equidigital number, since it uses as much as digits as its factorization.

11642504693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314662326.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 11642504693 in words is "eleven billion, six hundred forty-two million, five hundred four thousand, six hundred ninety-three".