6454404353993 has 2 divisors, whose sum is σ = 6454404353994. Its totient is φ = 6454404353992.

The previous prime is 6454404353921. The next prime is 6454404354017. The reversal of 6454404353993 is 3993534044546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6358683419449 + 95720934544 = 2521643^2 + 309388^2 .

It is a cyclic number.

It is not a de Polignac number, because 6454404353993 - 2¹⁴ = 6454404337609 is a prime.

It is not a weakly prime, because it can be changed into another prime (6454404353093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3227202176996 + 3227202176997.

It is an arithmetic number, because the mean of its divisors is an integer number (3227202176997).

Almost surely, 2^{6454404353993} is an apocalyptic number.

It is an amenable number.

6454404353993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6454404353993 is an equidigital number, since it uses as much as digits as its factorization.

6454404353993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83980800, while the sum is 59.

The spelling of 6454404353993 in words is "six trillion, four hundred fifty-four billion, four hundred four million, three hundred fifty-three thousand, nine hundred ninety-three".