117521583453 has 8 divisors (see below), whose sum is σ = 174106049600. Its totient is φ = 78347722284.

The previous prime is 117521583437. The next prime is 117521583467. The reversal of 117521583453 is 354385125711.

117521583453 is a `hidden beast` number, since 1 + 1 + 7 + 5 + 21 + 583 + 45 + 3 = 666.

It is not a de Polignac number, because 117521583453 - 2⁴ = 117521583437 is a prime.

It is a super-2 number, since 2×117521583453² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117521583399 and 117521583408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117521583653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176325593 + ... + 2176325646.

It is an arithmetic number, because the mean of its divisors is an integer number (21763256200).

Almost surely, 2^117521583453 is an apocalyptic number.

It is an amenable number.

117521583453 is a deficient number, since it is larger than the sum of its proper divisors (56584466147).

117521583453 is an equidigital number, since it uses as much as digits as its factorization.

117521583453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352651248 (or 4352651242 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The spelling of 117521583453 in words is "one hundred seventeen billion, five hundred twenty-one million, five hundred eighty-three thousand, four hundred fifty-three".