53810398107649 has 8 divisors (see below), whose sum is σ = 54825905491560. Its totient is φ = 52794898755456.

The previous prime is 53810398107647. The next prime is 53810398107701. The reversal of 53810398107649 is 94670189301835.

It can be written as a sum of positive squares in 4 ways, for example, as 37237821198400 + 16572576909249 = 6102280^2 + 4070943^2 .

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 53810398107649 - 2¹ = 53810398107647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53810398107647) 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, 12497499 + ... + 16242175.

It is an arithmetic number, because the mean of its divisors is an integer number (6853238186445).

Almost surely, 2^{53810398107649} is an apocalyptic number.

It is an amenable number.

53810398107649 is a deficient number, since it is larger than the sum of its proper divisors (1015507383911).

53810398107649 is a wasteful number, since it uses less digits than its factorization.

53810398107649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015859.

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 53810398107649 in words is "fifty-three trillion, eight hundred ten billion, three hundred ninety-eight million, one hundred seven thousand, six hundred forty-nine".