13649103493 has 8 divisors (see below), whose sum is σ = 14019605240. Its totient is φ = 13278686400.

The previous prime is 13649103469. The next prime is 13649103499. The reversal of 13649103493 is 39430194631.

It can be written as a sum of positive squares in 4 ways, for example, as 6290551969 + 7358551524 = 79313^2 + 85782^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13649103493 - 2²⁵ = 13615549061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13649103499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440143 + ... + 470131.

It is an arithmetic number, because the mean of its divisors is an integer number (1752450655).

Almost surely, 2^13649103493 is an apocalyptic number.

It is an amenable number.

13649103493 is a deficient number, since it is larger than the sum of its proper divisors (370501747).

13649103493 is a wasteful number, since it uses less digits than its factorization.

13649103493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42327.

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 13649103493 in words is "thirteen billion, six hundred forty-nine million, one hundred three thousand, four hundred ninety-three".