6402903893 has 2 divisors, whose sum is σ = 6402903894. Its totient is φ = 6402903892.

The previous prime is 6402903877. The next prime is 6402903929. The reversal of 6402903893 is 3983092046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5925612484 + 477291409 = 76978^2 + 21847^2 .

It is a cyclic number.

It is not a de Polignac number, because 6402903893 - 2⁴ = 6402903877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6402908893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201451946 + 3201451947.

It is an arithmetic number, because the mean of its divisors is an integer number (3201451947).

Almost surely, 2^6402903893 is an apocalyptic number.

It is an amenable number.

6402903893 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402903893 is an equidigital number, since it uses as much as digits as its factorization.

6402903893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 6402903893 is about 80018.1472729780. The cubic root of 6402903893 is about 1856.9162967631.

The spelling of 6402903893 in words is "six billion, four hundred two million, nine hundred three thousand, eight hundred ninety-three".