802765786404 has 12 divisors (see below), whose sum is σ = 1873120168304. Its totient is φ = 267588595464.

The previous prime is 802765786379. The next prime is 802765786409. The reversal of 802765786404 is 404687567208.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (802765786409) 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 in 3 ways as a sum of consecutive naturals, for example, 33448574422 + ... + 33448574445.

Almost surely, 2^802765786404 is an apocalyptic number.

It is an amenable number.

802765786404 is an abundant number, since it is smaller than the sum of its proper divisors (1070354381900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

802765786404 is a wasteful number, since it uses less digits than its factorization.

802765786404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66897148874 (or 66897148872 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 57.

The spelling of 802765786404 in words is "eight hundred two billion, seven hundred sixty-five million, seven hundred eighty-six thousand, four hundred four".