6400013573 has 2 divisors, whose sum is σ = 6400013574. Its totient is φ = 6400013572.

The previous prime is 6400013527. The next prime is 6400013591. The reversal of 6400013573 is 3753100046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4061130529 + 2338883044 = 63727^2 + 48362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6400013573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6400063573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200006786 + 3200006787.

It is an arithmetic number, because the mean of its divisors is an integer number (3200006787).

Almost surely, 2^6400013573 is an apocalyptic number.

It is an amenable number.

6400013573 is a deficient number, since it is larger than the sum of its proper divisors (1).

6400013573 is an equidigital number, since it uses as much as digits as its factorization.

6400013573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 6400013573 is about 80000.0848312050. The cubic root of 6400013573 is about 1856.6368459501.

The spelling of 6400013573 in words is "six billion, four hundred million, thirteen thousand, five hundred seventy-three".