11726521353 has 6 divisors (see below), whose sum is σ = 16938308634. Its totient is φ = 7817680896.

The previous prime is 11726521349. The next prime is 11726521361. The reversal of 11726521353 is 35312562711.

11726521353 is a `hidden beast` number, since 11 + 72 + 6 + 521 + 3 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11126663289 + 599858064 = 105483^2 + 24492^2 .

It is not a de Polignac number, because 11726521353 - 2² = 11726521349 is a prime.

It is a super-2 number, since 2×11726521353² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11726521253) 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, 651473400 + ... + 651473417.

It is an arithmetic number, because the mean of its divisors is an integer number (2823051439).

Almost surely, 2^11726521353 is an apocalyptic number.

It is an amenable number.

11726521353 is a deficient number, since it is larger than the sum of its proper divisors (5211787281).

11726521353 is a wasteful number, since it uses less digits than its factorization.

11726521353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302946823 (or 1302946820 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The spelling of 11726521353 in words is "eleven billion, seven hundred twenty-six million, five hundred twenty-one thousand, three hundred fifty-three".