11709436653 has 64 divisors (see below), whose sum is σ = 18345000960. Its totient is φ = 7371907200.

The previous prime is 11709436649. The next prime is 11709436663. The reversal of 11709436653 is 35663490711.

It is a happy number.

It is not a de Polignac number, because 11709436653 - 2² = 11709436649 is a prime.

It is a super-2 number, since 2×11709436653² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11709436599 and 11709436608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11709436663) 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 63 ways as a sum of consecutive naturals, for example, 6120025 + ... + 6121937.

It is an arithmetic number, because the mean of its divisors is an integer number (286640640).

Almost surely, 2^11709436653 is an apocalyptic number.

It is an amenable number.

11709436653 is a deficient number, since it is larger than the sum of its proper divisors (6635564307).

11709436653 is a wasteful number, since it uses less digits than its factorization.

11709436653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 11709436653 in words is "eleven billion, seven hundred nine million, four hundred thirty-six thousand, six hundred fifty-three".