6402459845 has 16 divisors (see below), whose sum is σ = 8324078400. Its totient is φ = 4708564224.

The previous prime is 6402459829. The next prime is 6402459857. The reversal of 6402459845 is 5489542046.

It is a cyclic number.

It is not a de Polignac number, because 6402459845 - 2⁴ = 6402459829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6402459845.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 872195 + ... + 879504.

It is an arithmetic number, because the mean of its divisors is an integer number (520254900).

Almost surely, 2^6402459845 is an apocalyptic number.

It is an amenable number.

6402459845 is a deficient number, since it is larger than the sum of its proper divisors (1921618555).

6402459845 is a wasteful number, since it uses less digits than its factorization.

6402459845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751764.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The square root of 6402459845 is about 80015.3725542786. The cubic root of 6402459845 is about 1856.8733694162.

The spelling of 6402459845 in words is "six billion, four hundred two million, four hundred fifty-nine thousand, eight hundred forty-five".