820569892692 has 48 divisors (see below), whose sum is σ = 2088952979904. Its totient is φ = 248630208000.

The previous prime is 820569892673. The next prime is 820569892699. The reversal of 820569892692 is 296298965028.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820569892699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880092 + ... + 1554252.

It is an arithmetic number, because the mean of its divisors is an integer number (43519853748).

Almost surely, 2^820569892692 is an apocalyptic number.

It is an amenable number.

820569892692 is an abundant number, since it is smaller than the sum of its proper divisors (1268383087212).

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

820569892692 is a wasteful number, since it uses less digits than its factorization.

820569892692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683400 (or 683398 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 820569892692 in words is "eight hundred twenty billion, five hundred sixty-nine million, eight hundred ninety-two thousand, six hundred ninety-two".