15344568916993 has 4 divisors (see below), whose sum is σ = 15348726213808. Its totient is φ = 15340411620180.

The previous prime is 15344568916913. The next prime is 15344568916997. The reversal of 15344568916993 is 39961986544351.

15344568916993 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15344568916993 - 2¹⁷ = 15344568785921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15344568916997) 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, 2078642871 + ... + 2078650252.

It is an arithmetic number, because the mean of its divisors is an integer number (3837181553452).

Almost surely, 2^{15344568916993} is an apocalyptic number.

It is an amenable number.

15344568916993 is a deficient number, since it is larger than the sum of its proper divisors (4157296815).

15344568916993 is an equidigital number, since it uses as much as digits as its factorization.

15344568916993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157296814.

The product of its digits is 755827200, while the sum is 73.

The spelling of 15344568916993 in words is "fifteen trillion, three hundred forty-four billion, five hundred sixty-eight million, nine hundred sixteen thousand, nine hundred ninety-three".