113473666491 has 4 divisors (see below), whose sum is σ = 151298221992. Its totient is φ = 75649110992.

The previous prime is 113473666417. The next prime is 113473666517. The reversal of 113473666491 is 194666374311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113473666491 - 2¹³ = 113473658299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113473666091) 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, 18912277746 + ... + 18912277751.

It is an arithmetic number, because the mean of its divisors is an integer number (37824555498).

Almost surely, 2^113473666491 is an apocalyptic number.

113473666491 is a deficient number, since it is larger than the sum of its proper divisors (37824555501).

113473666491 is an equidigital number, since it uses as much as digits as its factorization.

113473666491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37824555500.

The product of its digits is 1959552, while the sum is 51.

The spelling of 113473666491 in words is "one hundred thirteen billion, four hundred seventy-three million, six hundred sixty-six thousand, four hundred ninety-one".