15340681193 has 4 divisors (see below), whose sum is σ = 15389693268. Its totient is φ = 15291669120.

The previous prime is 15340681189. The next prime is 15340681199. The reversal of 15340681193 is 39118604351.

15340681193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 729432064 + 14611249129 = 27008^2 + 120877^2 .

It is a cyclic number.

It is not a de Polignac number, because 15340681193 - 2² = 15340681189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15340681193.

It is not an unprimeable number, because it can be changed into a prime (15340681199) 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, 24505568 + ... + 24506193.

It is an arithmetic number, because the mean of its divisors is an integer number (3847423317).

Almost surely, 2^15340681193 is an apocalyptic number.

It is an amenable number.

15340681193 is a deficient number, since it is larger than the sum of its proper divisors (49012075).

15340681193 is an equidigital number, since it uses as much as digits as its factorization.

15340681193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49012074.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 15340681193 in words is "fifteen billion, three hundred forty million, six hundred eighty-one thousand, one hundred ninety-three".