113978406673 has 4 divisors (see below), whose sum is σ = 114150840628. Its totient is φ = 113805972720.

The previous prime is 113978406653. The next prime is 113978406679. The reversal of 113978406673 is 376604879311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77280108049 + 36698298624 = 277993^2 + 191568^2 .

It is a cyclic number.

It is not a de Polignac number, because 113978406673 - 2¹⁷ = 113978275601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113978406679) 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, 86215986 + ... + 86217307.

It is an arithmetic number, because the mean of its divisors is an integer number (28537710157).

Almost surely, 2^113978406673 is an apocalyptic number.

It is an amenable number.

113978406673 is a deficient number, since it is larger than the sum of its proper divisors (172433955).

113978406673 is an equidigital number, since it uses as much as digits as its factorization.

113978406673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172433954.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 113978406673 in words is "one hundred thirteen billion, nine hundred seventy-eight million, four hundred six thousand, six hundred seventy-three".