6492461551421 has 4 divisors (see below), whose sum is σ = 6496282896000. Its totient is φ = 6488640206844.

The previous prime is 6492461551403. The next prime is 6492461551423. The reversal of 6492461551421 is 1241551642946.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-6492461551421 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 6492461551421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6492461551423) 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, 1910669741 + ... + 1910673138.

It is an arithmetic number, because the mean of its divisors is an integer number (1624070724000).

Almost surely, 2^{6492461551421} is an apocalyptic number.

It is an amenable number.

6492461551421 is a deficient number, since it is larger than the sum of its proper divisors (3821344579).

6492461551421 is a wasteful number, since it uses less digits than its factorization.

6492461551421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821344578.

The product of its digits is 2073600, while the sum is 50.

The spelling of 6492461551421 in words is "six trillion, four hundred ninety-two billion, four hundred sixty-one million, five hundred fifty-one thousand, four hundred twenty-one".