6445493260802 has 6 divisors (see below), whose sum is σ = 9668245276809. Its totient is φ = 3222744835200.

The previous prime is 6445493260799. The next prime is 6445493260853. The reversal of 6445493260802 is 2080623945446.

It can be written as a sum of positive squares in 2 ways, for example, as 6427801866721 + 17691394081 = 2535311^2 + 133009^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1795201.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 2692802 + ... + 4488002.

Almost surely, 2^{6445493260802} is an apocalyptic number.

6445493260802 is a deficient number, since it is larger than the sum of its proper divisors (3222752016007).

6445493260802 is an frugal number, since it uses more digits than its factorization.

6445493260802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590404 (or 1795203 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 6445493260802 in words is "six trillion, four hundred forty-five billion, four hundred ninety-three million, two hundred sixty thousand, eight hundred two".