113663502978 has 8 divisors (see below), whose sum is σ = 227327005968. Its totient is φ = 37887834324.

The previous prime is 113663502971. The next prime is 113663503043. The reversal of 113663502978 is 879205366311.

It is a sphenic number, since it is the product of 3 distinct primes.

113663502978 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 113663502978.

It is not an unprimeable number, because it can be changed into a prime (113663502971) 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, 9471958576 + ... + 9471958587.

It is an arithmetic number, because the mean of its divisors is an integer number (28415875746).

Almost surely, 2^113663502978 is an apocalyptic number.

113663502978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113663502978 is a wasteful number, since it uses less digits than its factorization.

113663502978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18943917168.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 113663502978 in words is "one hundred thirteen billion, six hundred sixty-three million, five hundred two thousand, nine hundred seventy-eight".