6353261621213 has 4 divisors (see below), whose sum is σ = 6841974053628. Its totient is φ = 5864549188800.

The previous prime is 6353261621209. The next prime is 6353261621219. The reversal of 6353261621213 is 3121261623536.

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 2663858129689 + 3689403491524 = 1632133^2 + 1920782^2 .

It is a cyclic number.

It is not a de Polignac number, because 6353261621213 - 2² = 6353261621209 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 (6353261621219) 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, 244356216188 + ... + 244356216213.

It is an arithmetic number, because the mean of its divisors is an integer number (1710493513407).

Almost surely, 2^{6353261621213} is an apocalyptic number.

It is an amenable number.

6353261621213 is a deficient number, since it is larger than the sum of its proper divisors (488712432415).

6353261621213 is a wasteful number, since it uses less digits than its factorization.

6353261621213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488712432414.

The product of its digits is 233280, while the sum is 41.

The spelling of 6353261621213 in words is "six trillion, three hundred fifty-three billion, two hundred sixty-one million, six hundred twenty-one thousand, two hundred thirteen".