113603388644 has 12 divisors (see below), whose sum is σ = 198817492524. Its totient is φ = 56798390784.

The previous prime is 113603388643. The next prime is 113603388649. The reversal of 113603388644 is 446883306311.

It can be written as a sum of positive squares in 2 ways, for example, as 56329326244 + 57274062400 = 237338^2 + 239320^2 .

It is a super-2 number, since 2×113603388644² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113603388643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747689 + ... + 886704.

It is an arithmetic number, because the mean of its divisors is an integer number (16568124377).

Almost surely, 2^113603388644 is an apocalyptic number.

It is an amenable number.

113603388644 is a deficient number, since it is larger than the sum of its proper divisors (85214103880).

113603388644 is a wasteful number, since it uses less digits than its factorization.

113603388644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651774 (or 1651772 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 113603388644 in words is "one hundred thirteen billion, six hundred three million, three hundred eighty-eight thousand, six hundred forty-four".