6453420650885 has 8 divisors (see below), whose sum is σ = 8339805148920. Its totient is φ = 4765602942144.

The previous prime is 6453420650879. The next prime is 6453420650927. The reversal of 6453420650885 is 5880560243546.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1174964945764 + 5278455705121 = 1083958^2 + 2297489^2 .

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 6453420650885 - 2⁸ = 6453420650629 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6453420650885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49641697250 + ... + 49641697379.

It is an arithmetic number, because the mean of its divisors is an integer number (1042475643615).

Almost surely, 2^{6453420650885} is an apocalyptic number.

6453420650885 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6453420650885 is a deficient number, since it is larger than the sum of its proper divisors (1886384498035).

6453420650885 is a wasteful number, since it uses less digits than its factorization.

6453420650885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99283394647.

The product of its (nonzero) digits is 27648000, while the sum is 56.

The spelling of 6453420650885 in words is "six trillion, four hundred fifty-three billion, four hundred twenty million, six hundred fifty thousand, eight hundred eighty-five".